Is this the correct Tom Wood driveshaft?
- Thread starter gatertamer
- Start date
your best bet is to call @Shawn at Tom Wood's 801-737-0757 and tell him exactly what you have and he'll get you sorted
Do stock rear end shafts all have the same number of splines or do they differ. I have Dana 44 do I need to pull it out and count?
To answer your question, yes that would be the correct SYE and drive shaft combo for a TJ. However, the drive shaft photo they are using is not the correct photo, the shaft would not have a flange style attachment at the transfer case. Side note about the SYE and drive shaft package they are selling. That's a really good price. I know how much the shaft costs them, I know how much wholesale is on both of those SYE kits, and I don't think that they are making much on this. You'd be getting a great deal if you buy through Savvy.
Now to throw you a curveball. You have a pretty big lift on your TJ. Big lifts = big drive shaft angles. Because of this, to help reduce the angles a bit, I recommend the Teraflex Extreme Short SYE. Found here and elsewhere. It is a couple hundred dollars more than a standard SYE but it will increase your drive shaft length by about 20% which should reduce the operating angle of the drive shaft by the same 20%. Less angle means longer life. If you order the extreme short SYE, measure as shown in the photo below but do not subtract 3". Instead, if you measure 19", you need a 19" long drive shaft with the extreme short SYE. These are of course just example numbers and your measurements may vary.
Addressing the questions about spline count/size. The stock rear output shaft is 27 spline. Any of the SYE kits mentioned above will upgrade this to a 32 spline. This larger/stronger output shaft is a bonus upgrade and is the case with just about any SYE that is not a "hack and tap". The pinion shafts, at the differentials, is 26 spline. But that's not really relevant to the SYE conversation because the rear pinion yoke will not need to change.
Just in case anyone is curious about what the slip yoke eliminator does exactly, you can watch a video explanation on this page https://4xshaft.com/blogs/general-t...-eliminator-installation-purpose-and-benefits
Now to throw you a curveball. You have a pretty big lift on your TJ. Big lifts = big drive shaft angles. Because of this, to help reduce the angles a bit, I recommend the Teraflex Extreme Short SYE. Found here and elsewhere. It is a couple hundred dollars more than a standard SYE but it will increase your drive shaft length by about 20% which should reduce the operating angle of the drive shaft by the same 20%. Less angle means longer life. If you order the extreme short SYE, measure as shown in the photo below but do not subtract 3". Instead, if you measure 19", you need a 19" long drive shaft with the extreme short SYE. These are of course just example numbers and your measurements may vary.
Addressing the questions about spline count/size. The stock rear output shaft is 27 spline. Any of the SYE kits mentioned above will upgrade this to a 32 spline. This larger/stronger output shaft is a bonus upgrade and is the case with just about any SYE that is not a "hack and tap". The pinion shafts, at the differentials, is 26 spline. But that's not really relevant to the SYE conversation because the rear pinion yoke will not need to change.
Just in case anyone is curious about what the slip yoke eliminator does exactly, you can watch a video explanation on this page https://4xshaft.com/blogs/general-t...-eliminator-installation-purpose-and-benefits
Nice informative post Shawn. I might just have to call your dad and brag on you just a little.
Great info brother do you think the super short sye savvy is selling for an additional $60 on that page is the same one you’re talking about?
You know something, you are right, that is the super short SYE that I'm talking about. I didn't realize at first that they were showing the super short as an option in the dropdown box.
Plenty of us are using JB conversions super short SYE with success. The terraflex one (unless things have changed) requires the driveshaft bolts to be installed in the yoke before the yoke is installed onto the output shaft. The JB tail housing is also a smidgen thicker for what its worth.
Jeepin Jason 95
New Member
We've been running the JB Conversions SS SYE on our TJ for 19 years now, no problems what so ever. The only real downside is the need for an electronic signal converter to correct the speedometer vs being able to use the (far less expensive) factory-style speedo gear.
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