SCREAMING Bearings! (Full Teardown) Ford F-150 4.6 5.4

[@tomdixon1213]

Dave’s rapid response to your request is phenomenal. What an assistant! You are blessed to have Dave.

[@Gizmo42Rodeo]

What a difference a Dave makes. I'm also a Dave

[@jimmymcclendon6210]

Sounds exactly something Dave would say.....

[@golf25radioman]

Your theory of someone putting incorrect preload/tightness on the pinion may be it. I thought there was way too much backlash, which could be related to that. A full bearing overhaul, and limited slip too if the owner approves may be the ticket. I look forward to the followup video. Thanks for another great video. 😊

[@scottreed991]

Exactly my thoughts. Preload on crush washer. Pinion bearing too loose. Peace.

[@polygon-viewer]

3 minutes in, and my jaw is on the floor....I've never heard a bearing that loud in my life, and I live in St. Louis, where car maintenance is fix it when something falls off.

[@ken2tou]

Yup. Sounds like the bearings are made of sandpaper. 😅

[@justin.gollnick]

im wondering if somehow the noise rapidly got to that point, of if the owner is REALLY good at drowning out expensive sounds haha

[@stanbrown5425]

270 junkyard specials

[@johnt.848]

Ray bravely drove it further down the road than I would have dared.

[@davidmollard9832]

Hey not everyone, my vehicles are very well cared for here in Arnold

[@confuse3671]

1) it's a crush sleeve, not crush washer. 2) That is not a limited slip differential, that is an open diff. Those "clutch packs" are actually shims. 3) Yeah, someone over tightened the pinion. The races are probably not smooth anymore. I had one that actually cracked the race. Snap on makes special punches to get at the races - highly recommended (under the category - the right tool saves you lots of time). 4) I've never seen diff fluid look so much like water and have soap bubbles in it... That's supposed to be 90 weight??? How hot is it in Florida? New bearings should be set for 25 in-lbs drag torque. That includes the side bearings.... There is no way a diff should have fallen out like it did. Recommend you install the diff without the pinion, set the side pre-load, then install the pinion. I would also check the backlash and pattern just to be sure. Someone's been in there. Tapered bearings are supposed to have pre-load to survive. I like getting differential parts from Tom's Differentials. When Tom still owned it he gave me lots of advice on my first differential rebuild and gear swap after I messed up the first set of gears (I was too loose on the backlash). I would also recommend getting the GM gear marking compound. It is yellow, contrasts nicely with the black metal parts. Heck, by an install kit from Tom's. I think all of them are Timkin, made in USA bearings. BTW, are the side shims under the bearings? Is that a Dana? I hate Dana's for that reason alone. Give me a GM any day over a Dana. I know Dana 60s require pinion spreaders to make your life easier - but they are expensive. See OTC. BTW, before I did my own rear end work, I found offroad and 4x4 shops were the most economical way to do it. Those guys did gear swaps day in / day out and it was something like $500 / axle. Now a days, the gears alone would probably cost that. Sorry for the long response

[@gregjohnson2073]

Maybe he torqued it to 25 ft lbs.

[@HANZELVANDERLAAY]

We used to over shim our spider gears on our oval track cars...limited slip wasn't allow..but Xtra tight shims were

[@yesyes541]

Grin and Bearing it

[@jerryc3050]

I saw what you did.

[@1crustyoldmsgtretired870]

OOF that one is a growler! I think what happened was someone replaced the pinion seal and smoked the nut on without thinking about the preload on the pinion bearings.

[@bearing_aficionado]

Oh hell yeah! As The official bearing aficionado of this channel, I wholeheartedly endorse bearing videos!

[@ChromaKeyMystress]

I've been laughing and giggling since the noise started. HOLY COW!!!!

[@thethirdrail8397]

I have heard louder - Back in the 90's when we had the 84 dodge caravan, a bearing went bad and you want to hear loud while on the Hiway... us 94 from MPLS mn headed west back to north dakota... heck that was louder than this! the Wheel bearing went! I think this was in 1995! we no longer have the van! Thank god for that!

[@realcdcruze3558]

That familiar bearing helicopter sound.

[@Ronskutin]

Thumb up for Dave! He is excelent mechanic like Ray, hard working and always happy. He is keeper for sure. I salute you, sir!

[@rickydonahue1586]

Like Sleeper Dude says you always want to check your rear end because no one else is going to do it for you!👍

[@otissmith7057]

That proctologist snap of the glove when you had to 'go deep' for the retaining clips got me.

[@ryancase8744]

anyone else watching the truck in drive on the lift going down secretly think "what if the lift failed and the truck went sailing through the back of the shop" that would make the highlight reel for sure. Love the knowledge and commentary from Ray!

[@tomtke7351]

I kinda agree that this test is best accomplished with another in the driver's seat.

[@MarkEdmond-gw9lz]

In

[@garyh7949]

That thought did cross my mind.

[@Jay.Kellett]

"Let's put this down." Wheels still in drive. Not a good idea I'm thinking.

[@abitoffcenter383]

Yeah, I have an f150 and it sounded very similar to what that one did. I took it apart and things didn't look to bad. But I could tell that at some point the pinion nut had been over tightened. You could really see it on the races. I think they were trying to compensate for an incorrect spacing between the pinion and ring gears. Since I was unsure about what all had been done to it. I just rebuilt the whole thing. I've had no worries since then. Although every once in a while I'll hear a high pitch clicking. Sounds like a U-joint to me. But the odd thing is that it just comes and goes. I can't seem to find a reoccurring situation that would making it happen. It's just completely random and goes away as quickly as it shows up. But, it is a Ford. Fix Or Repair Daily 😕🤦‍♂

[@robertsturtevant6185]

Rather fix or repair daily, before I’m found on road dead…..😂😂

[@tomtke7351]

FORD has been around a long long time... so never forget: First On Race Day.

[@stevemccauley5734]

@@tomtke7351first on race day. Last to the finish line lol. F****ing old rebuilt dodge.

[@ElitePraetorianGuard]

@@tomtke7351 First On Race Day.... More like Fucked On Race Day! Just kidding, I have no hate for Fords.

[@elvism684]

Check the U-Joints if you think they are going bad. A broken U-Joint could lead to a cracked transmission case, transfer case and possibly bent driveshaft/ears or worse.

[@lookin424]

I have driveshaft banging with slop between forward and reverse shifts that I've isolated to the rear end as well as a high speed vibration. I need to takle this same rear. Glad to see the job before hand. I will be Closely taking pointers on the part 2 reassemble. Thanks Ray

[@bobherweg6442]

Sounds like rear universal.

[@michaelpressman7203]

​@@bobherweg6442check the universals first

[@lookin424]

@@bobherweg6442 I replaced the drive shaft it is all brand new. It did help, but the vibration is still there. New tires and freshly balanced. Alignment was checked and redone all good. With the drive shaft disconnected from the rear end there is a notable amount of play moving the pinion flange forward and backwards and all of the drive shaft play that I can feel in the shifter goes away I cannot move the drive shaft at all connected into the transmission so there is no play in the four-wheel drive or transmission once disconnected from the rear end. Last thing I need to do having done all of that is to crack open the rear end. I think I have a broken bearing race or cage in the pinion part of the rear end assembly

[@benrandomly2016]

Looking at those back tires and weirdness with the pinion bearings, I bet a kid has been out doing power brake burnouts. I use to see this a lot in the 1990s in V8 cars from the 60s, 70s, and 80s. I hope you get this job for a full rebuild.

[@ryburnsjr]

Baseball cards in the spokes

[@Michael-yi4mc]

Poker card is better since it’s laminated

[@kensharp7472]

Thanks for sharing knowledge on how to pinpoint problems. 80 years old and still trying to get more smarts. Hug our girl. Thanks

[@tc410]

That thing sounds like an air raid siren!

[@Michael-yi4mc]

Ray spinning the axle with a drill is every mechanic’s second childhood dream. Including myself!

[@shadetreemech290]

Yeah, I liked that too.

[@DaveLee83]

holy moly there's space in the yard. Could do all sorts of activities in there now.

[@HarryHafsak]

The foaming oil is from the oil moving in the diff. Banks has a video for their cover and it explains it.

[@dnclark79]

Following up on a previous comment I made about Dave being quoet and that is why I like him as part of your channel. Back in the days before your own shop, there was a video where you changed a compressor on a ford van. One of your coworkers came to tell you to make sure to have the bolts in the compressor when reinstalling for the clearance. I am sure that mechanic was trying to be helpful, and social. Or at least trying to get through the day. Dave is recognizably skilled. When he helps you out, he makes sure he understands what help is needed, and doesn't try to one-up you

[@olddrummer1942]

Dave probably quiet because he can't get a word in over Ray's talking!! LOL. (Just Jokin' folks)

[@julesballe463]

I worked for a car sales office, had a chevy van with howling rear end. Dealer wanted 1600, Firestone did it for 600, I went to the shop to check it out, parts everywhere on two tables !! Mechanic laughed at my moment of panic. 3 hours later, full bearing refit, I drove it, quiet as a kitten, amazing, 😅❤

[@vivalibre]

Ray, I appreciate the science fiction scene transition audio. One of many reasons why your channel hits.

[@MarkWatson-xi1ry]

Limited slip? I don't see any springs or clutch plates, also there was no tag on the cover bolt to use special additive.

[@daveanderson2865]

Full bearing rebuild is in order if the owner is going to keep truck. Otherwise, minimum replacement.

[@seamasrigh2162]

"Hey! It's that guy." That was IMPRESSIVE.

[@johnt.848]

Wrong channel. 🤣

[@jackbowman4788]

Morning Ray- I got nervous when you were under that truck with the engine in gear ! Just me I guess !

[@1jackvalley580]

Nope, You were not the only oneJack

[@williameldridge9382]

Then you fundamentally don't understand physics.

[@kennybaumann2117]

​@@williameldridge9382Well I guess I don't fundamentally understand physics either so please explain how they are applicable in this scenario.

[@alanclarke2524]

No. Not just you, but I was more concerned as he lowered the truck towards the ground with the driving wheels still powered.

[@kennybaumann2117]

@@alanclarke2524 Me too I that's why I asked @williameldridge9382 why he responded we don't understand physics because of our concerns. He has yet to respond so must be a keyboard troll.

[@petethefat2614]

I’d have to agree with you ray. The rear end in this ford is super finicky and if someone torqued it down too much it will make that sound.

[@westvideo]

Dave's new nickname will be Radar

[@wolfpreist]

may favorite use for used newish oil is drill bit lubrication

[@peterwill3699]

And used transmission oil makes a grate winter rust prevention up north.

[@armedfarm3429]

Newish gear lube goes in a container, when needed I dump it in another container, when the metal fuzz separates from the good oil on top, I REUSE IT! 🤩

[@Paramount531]

Great video! I haven't done much differential stuff, only one has ever failed me on a Pinto station wagon in the early 80s. A $75 used rear axle at the wrecking yard solved that one.

[@michaelpressman7203]

Blown up u-joints,yokes and blew a spider gear threw the rear end housing 😢

[@DanielJohnson-ec8rk]

Brave man to admit to owning a Pinto

[@DocZoidberg549]

​@@DanielJohnson-ec8rkMy first car was a sh*t green pinto wagon. It was the 70's and I was so happy to have transportation. It wasn't like today with spoiled kids that don't appreciate what they have.

[@DanielJohnson-ec8rk]

@@DocZoidberg549 when I was 17 I bought an 82 Trans am. This was about 1989. My insurance was $300 a month for bare Minimum liability. After 6 months of paying for insurance, I traded it straight across with my mom’s mechanic for an AMC Pacer. Yes, it’s true. Now that car was embarrassing but cheap and reliable

[@TimSwannell]

When you show the close up of the bearing race at 24.04 you can see it has ridges in it; the rollers falling into these grooves is what is causing the noise, essentially cogging. It could be an under hardened race or it could have been someone putting way too much preload on the bearing (its probably a combination of the both)

[@Wartai]

When you drove off with that Helicopter sound, you drove it further than I would have ... I was waiting for the diff to explode

[@johnangelico667]

That is the loudest rear end I have heard on or off the road!!

[@catherinemorgan2741]

Good Day Ray and hi to Dave

[@purplecouple477]

MAN!! That noise made my ears ring! And through the video no less.

[@RAYROTHSTEIN66]

Those dark lines on the outter races on the pinion bearings are the cause of the noise. It's like little divits the bearing has to roll over.

[@billwhite5188]

Ray and Lauren. Im baaaack. Have been sick with long haul covid for 2 years 10 months so laying really low. Missex you guys but im gwtring some betrer and loving how Ray diagnosis so very well. Trust your home was safe through Helene's fury.

[@rjc862003]

the soft preload on the limited slip clutch sprags would be enough to prevent diff action without any load on it

[@MarkJones-n]

One of the best looking F-150 models ever produced. That one is in great shape and still worth $10k.

[@raybrensike42]

Good to know, that there could be that kind of pressure on pinion bearings without any real obvious damage to the bearings or races. That pinion was supposed to turn with only a few inch pounds.

[@bblod4896]

I'd replace all the bearings since it's already apart and perhaps the clutch (friction ) plates if the wrong differential lubricant was used. Looking forward to part II.

[@TheJcrandazzo]

Pinion preload and mis adjusted ring to pinion gears

[@RenegadesGarage]

Rainman Ray.. I would definitely do a complete rebuild on it. And now is the perfect opportunity to change the gear ratio. Why not, right?

[@kirk1065]

As a diff. tech for many years it's my opinion you should look at replacing ring and pinion with the bearings it will make noise if you don't

[@wilbilt]

It looks like that ring and pinion are toast, especially the wear at the outer edges. Slamming around with that much backlash likely did them in.

[@kirk1065]

@@wilbilt 👍

[@johnt.848]

The Pinion shaft was definitely too tight, possibly a shim in the wrong place, or missing one.

[@lawrencecavens5760]

I think you missed the noise - To me it sounded like the back lash was Way to Way out of adjustment and if you look closely to the ring gear at the outer tip the pinion wasn't set right and was extremely loose. Bearings don't sound like that They just growel

[@XENONEOMORPH1979]

new parts kills the doubt and fresh parts.

[@SuperBighead1973]

I’ve been a fan of the Axel Saver Bearings anytime I’ve ever had to work on a rear end. An Axel Saver is built the same as a regular bearing, except they’re wider (double thick). It allowas you to keep an axle that otherwise would have to be replaced. If you’re working on a budget, they are lifesavers.

[@ralphedds1]

Once I saw the tires, I remembered the truck.

[@garywalstrom2603]

I would start looking for recycling yard replacement part.

[@JRS-iq9pz]

Interesting. Can't wait to see the rebuild.

[@paulbelcher7380]

This is the first time I've heard you acknowledge that you really can't pinpoint the problem, so replace everything is the way forward. The last time I heard that was about 30 years ago when a fellow mechanic and the foreman had an engine knock on an 1800 for diesel and replacing every bush, bearing and the piston ring gave gave them a positive outcome. They would never have found the offending individual part.

[@raymondkidwell2338]

A limited slip differential will spin both wheels when both of them are off the ground with no pressure on neither one of them. This carrier has no issues, no need to replace it.

[@stillraven9415]

I dont know what you did but the only time o heard any difference at all was right at the diff cover

[@MikeBrown-hd3bt]

really cool how you used a microphone for the viewers

[@btwbrand]

I'm doing this on a 2004 tomorrow. Truck has 114K miles. The noise is almost as loud as this. Owner did not complain one bit about it.

[@therealblue42]

Perfect example of why bearings have to be tested under load. Nice work!

[@doleph1]

"A noise" is an understatement. Holy heck!

[@patricknesbitt4003]

I remember replacing front wheel bearings on a Plymouth Horizon where the owner's son rode the brakes for 2 miles coming down a mountain heating the rotors to the point where they turned blue and cooked the grease in both bearings. Test driving the car produced a noise that sounded like a twin engine Cessna flying 10 feet over the car.

[@frtsnfr7504]

Friend of mine got a F-150. Came by and dropped the tailgate. I know you hate Ford but you can sit if u want He wasn’t happy when I said I hope the tailgate doesn’t fall off.

[@tsimpson007]

Love that bearing noise. Ray I hope you and the wife unit are doing well.

[@petermccoll469]

rear differential rebuild looks like the way to go

[@squiggyg.8415]

I noticed I was holding my breath when he was lowering the truck 😎

[@ourfarmhouseinspain]

I'm sure I used to have a toy car that made a whirring noise just like that. Thanks for the memory Ray ......

[@CatsMeowington]

"I need a little bit of protection for reaching deep into the rear", and upon reassembly, we recommend a tube or two of Desitin be applied to the affected area of noise, I know it works for me!

[@Hobotraveler82]

Like to see another part. For some odd reason this truck fascinates me. Been enjoying watching the videos on it. Of course, all your videos i find fascinating. Great job. 😊❤

[@jamesmoore7106]

Hey, you can mix that with a little bit of regular drain oil and use it for chain lube on your chainsaw. I’ve been doing that for years.

[@philsonnenberg6092]

Least of your worries with that year F150. Pretty sure that thing is part of the recall that is due to the trans downshifting to first at any speed. Quality UAW made vehicle!

[@williammyers5911]

I concur, it sounds like a bike with cards in wheels attached with clothes pins

[@gmoffat70]

It is a very common problem. I had a 2008 that did the same. They were originally recalled. If noise just started it can be shimmed. It's just the gear alignment. Even when parts look perfect. I had to get all new rear end parts from driveshaft yolk to inner wheel bearings.

[@bobbg9041]

It really sounded like the pion was slipping I'm surprised it didn't chew them up. If it was mine I'd take this time to do a full rebuild and upgrade to the way he drives either speed or power like you did on the Jeeps. He can always sell the used parts as a set.

[@shakerman55]

Someone has been in this rear end and did something wrong. I hope you can convince the owner to have it renewed.

[@marksmith-ew7ir]

I have seen you put new bearings in axels and you have said set the correct tension on bearings to gain the uneven wear not to shorten the life .

[@rayvarnson8976]

When you talk about tapered roller bearings, the bearing set is known a cup and cone. I only know this as I worked in a bearing house then a electric motor shop. Just for your information.

[@uenragedbro]

I also think it needs shims, neither side has them and it did come out way too easy, so it may need to be shimmed properly to get the pinion lined up with the ring

[@dudebud72]

I did both axle bearings, carrier, Eaton locker with serviceable U joints. My Denali had one end of a u joint hanging and I didn’t realize it. It destroyed my G80, every bearing and the pinion gear looked like a pencil fresh out of the sharpener.

[@opendstudio7141]

Curious to see if one of the pinion inner bearing races is cracked.

[@spencemccall8383]

That rear end requires diff fluid with an additive. Wonder if someone replaced pinion seal with incorrect torque and or no diff fluid additive

[@robames1293]

When I first heard the noise when you were driving it sounded similar to UJ noises, possible the tone relative to road speed. I didn't think of pinion bearings though.

[@madman432000]

I have a Jeep Liberty with rear end apart that is kind of the same. Didn't find any bad bearings and no gears chipped. A couple years ago I did have the pinion nut fall off and driveshaft fell off as I was leaving a stop sign. Reinstalled the nut and yoke and drove it. Just started making more grindy noises but nothing as severe as this truck had. You going to disassemble the clutch pack? I didn't see any threaded adjusters or shims come out with that carrier.

[@fanofoldfans9238]

I think it's the inner pinion bearing race. just an observation. I agree rebuild the whole rear end or put a used one in it. Great troubleshooting method.

[@JohnnyCarroll-wi6tx]

incorect pinion bearing preload.the second you took it for a test

[@charliedaubitz2046]

put in a new pinion seal and crush sleeve, check for wear on carrier shims, the carrier bearing cups were spinning in the housings. the carrier shims are worn. Too much backlash.

[@DHS956]

Ya it's very obvious it's the rear end gears sounds like the pinion gear.

[@emmettturner9452]

Wow, that is some NASTY bearing noise. I’ve had more bearing failures than most will ever have but the closest one I experienced was mistaken by the owner for the sound/feel of knobby tires. No way could this one ever be mistaken like that!

[@ta61cnc]

I am just a diy mechanic but I can’t see this being a limited slip. Those I think are just side gear thrust washers- not clutches. Looks like you are on the right track-replacing bearings and getting the correct pre-load.

[@edwardmoody4253]

Thata good for the rear transmission seal letting the driveshaft hang like that!

[@whatwasthat3269]

Shop looks fantastic.

[@HypocriticYT]

My Camaro had the diff howl twice until I replaced the gears with Yukon gears and upgraded the ratio 😅

[@akaltenbach]

Some ford trucks require a friction modifier addative in the diff, along with the gear oil . Without the addative it can cause damage and noise.

[@fleece192]

Good video, always learning stuff. On what to do.. and not to do. Like filming under a running vehicle 🚗

[@edwardrobb4682]

This rear has allot of problems . My first thought as the pinion bearings . But because of the miles and the problem with those clutches , I would just replace that center unit with a good used one or a new one . But it’s up to the owner . Your very good at rear ends so I am certain that you will handle this very well for the owner .

[@bootinnj]

thats a hard diag but of course you got this your rainman ray! cant wait to see the rebuild if customer agrees.

[@delantel6689]

Waiting for part 2

[@MatthewBekker]

Remembered once you showed tires ok if i was owner would be a complete rebuild and probably replace the whole dif unit may be some upgrades will doing it id want to really check where the bearings are running on the axle and where the seals sit

[@Michael-yi4mc]

I had a 1978 Dodge Aspen with locking diff. A special additive fluid , four ounces)was required to be added to the differential to quiet the clutch packs in it.

[@CedroCron]

Good call, I'd rebuild it so you can stand behind it. It's only going to serve the customer into the future anyway so might as well do it right the first time and then forget about it. Also Amsoil Severe Gear will do a great job in this Rear-End.