What is a Slip Yoke Eliminator (SYE)?

If you own a Jeep and you're planning on lifting it, you may have heard of a slip yoke eliminator, or SYE for short. But what is a slip yoke eliminator, and why do you need one? In this video, we'll answer these questions and more. We'll explain what a slip yoke is and how it works, and we'll show you what problems can arise when you lift your Jeep without an SYE. We'll also demonstrate how a slip yoke eliminator can fix those problems and make your Jeep perform better on and off-road. So if you're planning on lifting your Jeep, you won't want to miss this video. Check out our wide selection of SYE kits at 4xshaft.com/co... to get started on upgrading your Jeep's drivetrain today.

[@fedthefup2823]

EXCELLENT video! Thanks for leaving out your dog, the neighbors yard, what time the mail runs etc...... Easy to follow and valuable info.

[@322inc2]

I couldn't agree more I can't stand it when they try and tell me about them just get to the point give me the info then I'll subscribe

[@seanmabey1609]

Agreed

[@hiphop4x4]

Dude, this is the best education money never needs to buy on something extremely important to getting a lift. Thank you so much for creating this.

[@322inc2]

He's going to end up being a beast on KZbin if he keeps it up

[@ATEMOFFROAD]

Shawn is the man @tomwoods shop! Excellent demo and well explained ! Cheers

[@tuesdaystarks6275]

🤘🏼🔥🫣☘️💯

[@jessechilders5753]

Outstanding video. Watched this video the day after I installed an SYE into my XJ and still learned a few things.

[@322inc2]

Straight to the point amazing video didn't waste any time telling me about you thank you so very much

[@tuesdaystarks6275]

Now I need to put a 6" lift up under my Nissan Frontier XE 03 v-6 and I do actually believe XE stand's for extra expensive 🫣🤓👍 but seriously I don't think I could do something like this without this video and the many more I need to start watching them and instant replay on my phone.

[@vmexplorer]

Excellent work on this video. It was straight to the point using common language! Love it!

[@bryanrolland2967]

Great breakdown, already purchased and in process of setting up. I was not aware of the 2 degree difference you want from pinion to driveshaft in order to keep the needle bearings functioning in the rearmost u joint. Without this video I would have problems later for sure. Again, awesome video!

[@alecsithong]

This is so well done. Thanks man!

[@GreghouseVanBouten]

Excellent presentation... One of the best I've seen. Thank you

[@Pryde551]

Great video and excellent information! Thank you!

[@parrisjackson7102]

Great explanation of driveshaft articulation. Great for when I build my lowrider.....

[@cousin_JACK]

Very informative, definitely going to order a Tom woods shaft if I can afford it, it’ll be the final component for a Jeep MJ with 6” lift, SOA

Great video and very important

[@reedbenton9903]

You all prolly dont care at all but does anybody know a tool to log back into an Instagram account?? I somehow forgot my login password. I love any help you can give me.

[@gaelalessandro959]

@Reed Benton instablaster :)

[@reedbenton9903]

@Gael Alessandro thanks for your reply. I got to the site on google and im waiting for the hacking stuff now. Seems to take a while so I will reply here later with my results.

[@reedbenton9903]

@Gael Alessandro it did the trick and I actually got access to my account again. Im so happy! Thank you so much you saved my account!

[@gaelalessandro959]

@Reed Benton Glad I could help xD

[@topfeedcoco]

Fantastic video thank you.

[@28704joe]

Excellent presentation !

[@officialWWM]

exactly the info I was after. Cheers.

[@qweef69]

Aired down has your shafts!

[@VenomTT]

Great explanation

[@scottalvarez8870]

Fantastic explanation

[@davidjayroe828]

Hey I have that SPI digital level too. I love mine 🤘🇺🇸

[@jonpaulison2283]

Very informative video thank you !

[@tinkertime614]

What if the pinion angle at the diff points down slightly? Is there a fix for that?

[@duasobA]

Great vid, But what about the front axle angle?

[@tomwoodscustomdriveshafts7159]

Front axle angle should be adjusted to achieve correct steering caster. Front drive shaft and pinion angles are discussed in this video kzbin.info/www/bejne/iXmVh3yljLSEZqc

[@duasobA]

@@tomwoodscustomdriveshafts7159 many thanks 👍

[@jonluchessi1643]

Thank you for the video, the problem I’m having at the moment I have a new 392 jeep with a 4 1/2 inch lift and if I get the front pinion angle proper I cannot steer the jeep if I roll out the caster to slow the steering down then the pinion angle is wrong I don’t know what to do? And I can’t find a shop that I could work with locally to help me get the thing to steer once the pinion angle is set in other words if I adjust the lower control arms longer it slows the steering down but drops the angle of the differential downward which is bad for the pinion angle and if I adjust the upper control arms it basically does the same thing if any of this makes sense I am been lost on what to do?

[@chineseempanada420]

I’m having same problem on my xj If I set caster it’ll drive nice but get vibration and then vice versa

[@WesternReloader]

My 1980 Bronco has a double cardan just after rear shaft of t case, and the driveshaft has the slip

[@christopherbrown8523]

Here I am looking just for quick sye explanation..... my gawd I learned so much here! Just now! Can I run both drop kit and sye with a cardigan joint? Or is that a dumb idea?

[@christopherbrown8523]

CARDAN! 😂 👚👕

[@tomwoodscustomdriveshafts7159]

You sure can. The transfer case drop becomes unnecessary when you run a double cardan but it won't hurt the drive shaft to leave it installed.

[@christopherbrown8523]

@@tomwoodscustomdriveshafts7159 thank you!

[@arturm.8106]

Exellent video. If angle rear axle would be changed is nessery to put more oil to the diff? I mean for corect lubrication bearings of pinion gear.

[@tomwoodscustomdriveshafts7159]

It is not necessary to put more oil in but the fill plug location changes so make sure to put the normal amount of oil in. An explanation of this can be found at the 12 minute mark of our video "Drive Shaft Angles Explained".

[@luchofaconi9843]

Hi! You aren’t respecting the axle differential level lubrican, the pinion bearings will be broke in short time.

[@tomwoodscustomdriveshafts7159]

This is a common misconception, but it is wrong. The pinion bearings will be fine, thousands of Jeeps have been running this exact setup for year and years with no problems. I explain this in detail at the 12:00 minute mark of this video kzbin.info/www/bejne/iXmVh3yljLSEZqc.

[@NoLies17]

Curious what the effect is on oiling for the pinion bearing when you raise it higher.

[@tomwoodscustomdriveshafts7159]

It doesn't affect it. The ring gear centrifuges the oil through the entire differential housing with enough velocity that it can easily get where it needs to go. This can be seen around 4:00 in this video kzbin.info/www/bejne/aYnKoaB4h5JmfMUsi=DRalClvDvclmzavK&t=208

[@skullfracture2]

Shawn WOOD, relation? Nice AK tattoo😁

[@tthundercatt]

What about lubrication for the opinion bearings? With the nose of the diff pointed up. Won't it be harder for that lubrication to get to those bearings?

[@tomwoodscustomdriveshafts7159]

The oil still gets where it needs to go. You can learn more about this at the bottom of this page 4xshaft.com/collections/drive-shaft-parts/products/axle-shims

[@behindbarsmototouring898]

I need a driveshaft with this for a 6R80 transmission installation in an old vehicle.

[@calebsurpass]

could you change the NP231 cv yoke to a 1350 output flange? Curious as I have a NV231 Tcase with the slip yoke 1310 - I wanted to get a stronger drive shaft for the rear (1330 or 1350) because the rear drive shafts available are 1310 for the TJ non rubicon. Is it possible? (assuming the drive shaft is complimentary to the new output flange of the tcase and Rear diff has the upgraded 1330 or 1350 yoke) Thank you and hope it makes sense! Great video :)

[@chrisdejesus6276]

would a slip yoke shaft work for a 2003 extended cab s10 with an air ride system? original shaft has the cv joints but it contacts the upper wishbone mounting bolt head.

[@DumbCarGuy]

So would there be any harm if i set my pinion angle (jeep wrangler 2 dr) 2 degrees above the driveshaft as opposed to 2 degrees under the driveshaft? Like when you said set pinion angle 2 degrees under for the leaf spring and you get 4 degrees axle wrap which brings the pinion 2 degrees on top of the driveshaft. Seems like you might of said its ok to have your 2 degrees above the drive shaft without actually saying those words.

[@tomwoodscustomdriveshafts7159]

It is fine to have it 2 degrees high on vehicles with coil springs because they don't wrap and rotate like leaf springs do. Not necessary, and to keep the pinion angle adjustment less extreme most people will shoot for their pinion to be a couple degrees lower than the drive shaft as opposed to a couple degrees above. But either will work and if your pinion is already set up that way there is absolutely no reason you need to change it.

[@Bhartrampf]

What an a 8" lift on a K20? I have a one transfer drop and the slip eliminator kit, already installed by the previous owners, the guy I got it from installed a 14 bolt free float axle. I get a pretty good harmonic vibration at anything over 60 mph. The rear axle has no shims in it, what do I need to correct it?

[@CDNBVR1]

The one thing you don't tell us is this. Do you check angles with full weight on tires or when tires off the ground? I have a 1992 YJ with slip yoke eliminator. I'm also swapping out my D35 for a 2002 Ford Explorer truck 8.8. I need to know if I can set up the pinion angle while the tires are off or if I have to assemble everything and do a trial and error of tightening and loosening the axle until I get the right angle. Also the 8.8 yoke is offset to one side. Great video otherwise. Very informative.

[@tomwoodscustomdriveshafts7159]

Hi Phil. The angles should be measured and set at normal ride height. This means you ether need to have the Jeep parked on flat ground or it is being supported by the axles on a lift or on jack stands.

[@CDNBVR1]

@@tomwoodscustomdriveshafts7159 Thank you very much for your very quick reply. I see that I have my work cut out for me tomorrow.

[@Hitman-ds1ei]

Or run a CV joint !

[@ghostmost2614]

Can you explain more how you broght the pinion in line?

[@tomwoodscustomdriveshafts7159]

Well in this demonstration I actually just loosened a bolt and rotated the pinion on the tube stand that it is on. In real life though you would adjust the pinion by either using shims if you have leaf springs or adjustable control arms if you have coil springs. With the shims you install them between the springs and the spring perch. We even have a handy shim calculator on our website 4xshaft.com/collections/drive-shaft-parts/products/axle-shims. The control arm adjustment is demonstrated here kzbin.info/www/bejne/aJfKgGmmd9mElZo.

[@jorgevizcarra4437]

How do you get the pinion angle to be almost level with the drive shaft?

[@ATEMOFFROAD]

Fast forward to 15:00 min in this video and the driveshaft & pinion angle setup is explained kzbin.info/www/bejne/jnmQoq1rdtqSrtk

[@Teawithlee]

God damn that was informative 👏👏👏

[@robo11735]

Any considerations for impact to caster angle when tilting the pinion?

[@tomwoodscustomdriveshafts7159]

Only on the front pinion. There is no steering castor in the rear and the SYE is all about the rear shaft. On front shafts though, we tell people that the drive shaft may want the pinion to be a certain angle but the steering caster wants something else, and the steering caster takes priority.

[@johnmoring4596]

Good video but a bit over my head. I have an 89 Jeep YJ I bought from a friend. He and another friend of his put in a Pro Comp 4 inch lift but didn’t do anything to the transfer case or change the driveshafts. As a result, my YJ jumps out of second gear but only when coasting. My son says I need either longer driveshafts or slip yolk eliminators. Any advice for me?

[@tomwoodscustomdriveshafts7159]

I don't think the problem has anything to do with the drive shaft or the transfer case. It sounds to me like a problem with the transmission.

[@stevohmelike]

You also did not touch up on angling differential. What does that do to lubrication??

[@tomwoodscustomdriveshafts7159]

We went more in depth with our video "Drive Shaft Angles Explained". You can see the lubrication if the differential addressed at the 12:00 mark of that video. kzbin.info/www/bejne/iXmVh3yljLSEZqc

[@HostmorkeCZ]

Great video and nice ak47 tattoo!

[@banzaiib]

3:10 it won't ride rough if the pinion and t-case output are parallel, so long as you don't exceed the max angle for the joints. This video is kinda confusing.

[@jaredwilliams5252]

Do you guys have an sye kit for the np208?

[@tomwoodscustomdriveshafts7159]

We do. Search "208" on our website or call us for more info.

[@MegaMarclar]

Why not put a cardan joint at both sides?

[@tomwoodscustomdriveshafts7159]

Simply put it is not necessary. It also unnecessarily over-complicates the drive shaft. I explain this a bit more in our Drive Shaft Angles Explained video.

[@Lore-wv5mt]

He looks like max from fuller house

[@TheMeanderingNomad]

Where are you located?

[@tomwoodscustomdriveshafts7159]

Ogden, Utah.

[@Nigriff]

Nice ink

[@Yeyeyeyeyeyeyeyeah]

Yeyeyeyeyeyeyeyeyeyeyeyeah 😎👊🙏

[@dustinlerch9272]

And worst case, you replace a u joint every 50k instead of 100k. Gee golly.