1967 Plymouth Fury 3 Rearend Upgrade

The 1967 Plymouth fury 3 was making bad rearend noises and was in need of rearend attention. My solution was to replace it all with an upgraded chunk with 2.94 gears, new green axle bearings, and new u joints in a rebalanced driveshaft. After some tuning, this car will be ready to cruise the road again with it's Commando big block 440.

[@charlesschultz658]

Those brake shoes appear to be on backwards

[@JustMoparJoe]

I’m glad someone noticed! I always remembered them like a mullet haircut. Short in the front and long in the rear 😂

[@geebopbaluba1591]

My 64 440 were backwards as well

[@bradsrestorations1085]

I like that car!

[@rescuedandrestoredgarage]

Dang brother that is a very good-looking car. I bet the car rides like a dream.

[@JustMoparJoe]

Rides like a smooth dream!

[@rescuedandrestoredgarage]

@JustMoparJoe perfect.

[@318willrun]

Nice Car !!! I had a '68 Fury III with the police package. Great riding/driving cars! Thanks for sharing!

[@JustMoparJoe]

Thanks Tim! This one is shaping up!

[@lautburns4829]

Thanks for the cruise,Joe. It’s some beautiful country out there.

[@JustMoparJoe]

Thanks Laut!

[@BigMikesHooptyBarn]

Man I love those old Furys! My 1st car was a 68 Fury lll

[@JustMoparJoe]

Awesome, Mike!

[@chrisprice4420]

Great cruiser! So dang quite. "Lift and separate"😂

[@JustMoparJoe]

Haha! Thanks brother!

[@TonysHotRodGarage]

Sweet! Love the old C bodies!🏁

[@JustMoparJoe]

Thanks Tony!

[@dumpsterchicken6287]

Good job on that old Fury

[@JustMoparJoe]

Thanks brother

[@johnelliott7375]

Thank you for having me back. I'm glad you are going strong.

[@JustMoparJoe]

Thank you too!

[@Anthony-nw5zv]

Nice Cruiser Joe! Always love the C Body's!

[@JustMoparJoe]

Thanks brother! Had fun with the tune up session.

[@jeffreybrianring6392]

Joe, you really need a lift in your shop, love your channel, very informative and love the purple cuda drag car. Btw the fury has my favorite wheels on it, every car built in the 60's look great with them on it.

[@JustMoparJoe]

That would be cool! I may have to spring for one someday.

[@mikestackhouse9001]

Love the early C bodies that still had hp! Nice trip cars with a 383/440 and dual exhaust. A new set of plugs and maybe wires, distributor check, carb clean and timing check and she will be golden.

[@JustMoparJoe]

Thanks Mike! It’s a world better than it was. Little tuning video coming soon

[@rickseeman5679]

Yeah fuzzy dice. That dude has it goin on.

[@JustMoparJoe]

Custom addition!

[@johnagreen883]

If memory serves, the 741 has a 1 5/8" pinion shaft, the 742 1 7/8", the 489 1 7/8". But the 489 pinion shaft is tapered, abd uses a crush sleeve for pinion depth, where the 741 and 742 use solid spacers. 20 years ago, I bought the aluminum performance center section out of the Mopar Performance catalogue. Interestingly, it used a 742 gear set, so MP considered it to be stronger. The trick my machinist taught me for a 489 is to crush the sleeve to the right pinion depth and a good pattern, then take it out and machine a solid sleeve to that height. Side note, the 742 was used through 1968. The 489 started in 1969. Oh, one more thing. My machinist insisted the stock tapered bearings are stronger than the "green" axle bearings, and years later I read a tech article by Richard Ehrenberger where he said the same. I had to use the green bearings, because sometime before I bought it, my Super Bee bearings had failed on one side, ruining the housing for the OEM tapered bearings. Really enjoy your channel, and your mellow tone. Thank you!

[@JustMoparJoe]

Thanks for sharing! I knew some on the 8.75 differences, but I enjoy learning from my viewers. I’ve had good luck with the greens, but have heard the horror stories too.

[@johnagreen883]

I misspoke above Joe, the 742 has a 1 3/4" pinion shaft, but you caught that I'm sure. Damned phones are tough to type on. 😊 I really do enjoy your channel. Greetings from West of Seattle, from a guy whose dad was a top mechanic at a little Chrysler Plymouth dealership when he was a kid, and on the other side, whose Swede grandpa drove nothing but Dodges. Haha, guess I was hit with both barrels.

[@brianandglendaharkin9457]

She was geared high . Make it a slug 🐌 down low . She sit up and take notice with the lower gears . Never destroyed a MOPAR diff thank goodness . An were had a truck load of Mopar . Nice old car Joe . 👍🏻🇦🇺💯⛽️.

[@JustMoparJoe]

Great point! Thanks brother

[@johnelliott7375]

When a fan is moving gear oil, that's a good fan.

[@ninjapumkin]

You sure live in a beautiful area Joe. Love it

[@JustMoparJoe]

Thanks brother. Pretty peaceful mostly

[@musclecarmitch908]

Nice job! Cool car!👍

[@JustMoparJoe]

Thanks Mitch!

[@ws2664]

I saw it too, noticed it right a way, I hope you switched them around before you sent it out.

[@JustMoparJoe]

Yes sir. Still finishing the electronic ignition up

[@johnelliott7375]

Glug! I haven't heard that one for a while. Great one JMJ, but I don't know enough people anymore to use the word today. I would get asked what do you mean.😉💯

[@JustMoparJoe]

Haha! I’ll bring it back

[@stephenwest798]

I always run a can of liquid gumout thru the tank before tinkering with the carb even if I plan on rebuilding it just to ensure that the fuel system is cleaned out. In fact, back in the sixties and seventies once I had a carb tuned to an engine it was a once-a-month ritual as they didn't have enough detergent in the gas back then, I think that was a day or two before your time. If that were my 440 it would be getting a new Edelbrock 800cfm AVS no questions asked.

[@JustMoparJoe]

Yes sir. Thanks for sharing

[@brianandglendaharkin9457]

I just put champions in my TJ Jeep 😮 never had a problem old stock 06 . 🤔😄

[@JustMoparJoe]

Well give NGK’s a try on your change. Tell ‘em JMJ sent you 😂

[@Ridendrty]

Hey Joe I have a wrecked 4 door 67 Fury III with a perfect back 1/2 and real nice factory tinted glass if anyone needs it for parts … theu dont repop much stuff for these cars

[@JustMoparJoe]

Thank you for sharing! I’m amazed at how nice the seals and glasses are in this car. I will share with anyone looking for sure 👍🏼

[@blakesmusclecar]

Loved this video Joe! I have an 8 3/4 suregrip 3rd member I need to sell. 4.11 gears. Anyway, looking forward to seeing you make these continued improvements on this Fury! Your content is always helpful and is an awesome resource for others such as myself.

[@JustMoparJoe]

Thanks brother! Next video is more fun 🤩

[@smilsmff]

i picked up a 383 1967 Years back thinking i would swap driveling into a 1966 Super Comando car ,wound up junking both and the 383 heads went to a friend( i think they were closed chamber design IDK) and then seats went for a roadrunner. It is Good to see this one is nice condition here

[@JustMoparJoe]

Yes sir. More to come on it soon

[@UnfinishedProjectDartSport]

Face my Fury!!

[@JustMoparJoe]

💥 💥 bang ❗️

[@MidnightOilsRestoration]

Sweet car! Little different than my 66' Sport Fury but similar feel...on the highway they're hard to beat 😊!

[@JustMoparJoe]

Right on. She floats along but pulls like a freight train.

[@thomasward4505]

The fury looks well-proportioned and does not look huge in the picture

[@JustMoparJoe]

She’s a big girl but can move pretty well

[@johnelliott7375]

Quarter mile runner gear there with a good motor in the vehicle

[@JustMoparJoe]

She pulls strong

[@MyKARSShop]

Same swap I will be doing on Scoops at some point. Hoping the 290 gear will give it a little more snap without killing gas mileage Good stuff brother

[@JustMoparJoe]

Thanks Mike!

[@rboynton8671]

That third member has been out before. The ones that are original are a whole lot more difficult to break loose!

[@JustMoparJoe]

Roy boy, I have the strength of ten men. And the breath of 20😂

[@gregtough9055]

There is nothing wrong with a 741 case. I ran one for two seasons on a 440 4spd B body with slicks. Heavy car and not much power (425ish). It never broke, but maybe I was lucky.

[@JustMoparJoe]

The old one had a howl to it. Definitely helped it out with the swap. Thanks Greg.

[@thomasward4505]

I have broken a couple of 741 rear ends my 742 case has been holding up for a while in my 6.5 second drag car but it broke when the axle tube twisted. A strange Dana 60 fixed all those problems

[@JustMoparJoe]

I love my Dana in the barracuda

[@SteveP-vm1uc]

Yes, they had a great ride, but the ULTIMATE cruiser was absolutely the "BIG BARGE" IMPERIAL.... Balls forever, and you felt like you were totally controlling a cloud....

[@JustMoparJoe]

It’s a cool feel to it

[@vincemajestyk9497]

741 is the weaker small pinion. 742 is the better or later 489 case. 742 clutch limited slip is better than the 489 cone type. It's not 'ideal' to remove the pinion yoke on those because there's a collapsible one-time use crush collar for the pinion bearing pre-load. I've seen people get away with it, but it's not the right way to do it. it has some effect on the backlash. Nice Fury! Looks pretty clean.

[@JustMoparJoe]

Thanks Vince. So far, so good.

[@vincemajestyk9497]

@@JustMoparJoe Good deal! I had a 741 behind a 440 6bbl and it didn't work out too well. It had the smaller yoke though.

[@edsmachine93]

Very nice old car Joe. I can tell that Fury is a cruiser. I know someone said this and they were correct. The Primary and Secondary brake shoes are definitely backwards. I agree to Joe looks like the rear differential has been in and out a couple of times. The silicone tells that story. I would definitely like that 2.93 instead of the 2.76. I like 3.23's myself for road gears. Anyway, cool old car. Nice work Joe. Thanks for sharing.

[@bigblockjalopy]

I drive a 383 Fury full size since 1988. It has the Standard 293 rear but I Always wished it had the longer 276. Revs just too high at normal cruising Speed 75-80mph

[@edsmachine93]

​@@bigblockjalopyWell bigblock I am very glad that you like what you like. As for me experience speaks for itself. 1967 GTX 440 3.23 and a auto trans. 150mph speedometer and the 3.23 gears were perfect. .484 284° Purple Shaft. 3.23 gears were the perfect road gear. Have a nice day.

[@JustMoparJoe]

Thanks, Ed. She’s much better than previously. I’m really glad I had that driveshaft balanced and new joints. You know balance is key.

[@edsmachine93]

@@JustMoparJoe Very nice job Joe. I could tell is was smooth.

[@bigblockjalopy]

@@edsmachine93 Maybe it has got something to do, that we dont have a speed limit. I would like to cruise around 2000rpm, like in newer cars. I hate wear and gas is very expensive over here. You can easily keep up with new cars, but only briefly. It revs at almost 6K at 160mph

[@bigblockjalopy]

Something is lose, or needs adjustment on your suspension/steering. That constant steering correction is not normal. With a 440 torque I would have left the highway gear rear in place.

[@JustMoparJoe]

I agree on the front end. This car actually has 235/75 series tires on it. It’s amazing that since I checked with the gps vs. speedometer,but now within 1-2 mph of accurate.

[@bigblockjalopy]

@@JustMoparJoe I have almost all early 60s car magazines/road tests. Mopars were the only cars with speedos that read SLOW back then, so I don't doubt yours is almost correct, just like that in my 60 Fury, almost spot on, GPS checked.

[@thomasward4505]

Your workbench looks kind of like mine, a little bit of a mess

[@JustMoparJoe]

It’s true. Clean benches don’t get much use 🫡

[@johnelliott7375]

Nothing wrong with that Lefty threads.

[@JustMoparJoe]

Old school cool

[@johnelliott7375]

@@JustMoparJoe I have to yell at them at work so they don't keep hammering on it.

[@johnelliott7375]

How many burnout shots has that chunk put out in its days.

[@JustMoparJoe]

That’s true. The last guy said he was racing it 😳

[@cjm5002]

Can you explain to me what the hell that stumbling is at 12:15 and onwards? Ive never had that happen at a cruise speed. 0.o

[@JustMoparJoe]

I agree it was a funky feeling. I poured 5 gallons of gas in, upgraded the distributor and points to an FBO box, and replaced the plugs with new NGK v powers. It runs like a dream now. Video coming soon.

[@cjm5002]

@@JustMoparJoe If that was ignition issues then thats a new one for me. I've heard some stumbling that was similar but only under acceleration, never at a steady cruise. What size hardline is on that coming up from the tank btw?

[@JustMoparJoe]

@@cjm5002 I believe its 3/8”. Looked like the factory line.

[@warrenm572hemi]

Brake shoes are backwards

[@JustMoparJoe]

Yes sir. Check out the pinned comment

[@joeljenkins2876]

Hey Joe: is this car yours?

[@JustMoparJoe]

No sir. Belongs to my Aunt and Uncle

[@joeljenkins2876]

@@JustMoparJoe oh ok. Well, they're blessed to have such a knowledgeable nephew!!! Keep up the good work!!!