What is the best SYE?

[jcarlos]

What is the best SYE? I’m building an ’87 YJ and want to make sure I get the best SYE. I hear many things about quality… some makers cut and weld shafts… some makers use one piece billet… some makers claim up to a 35% gain in strength… but other makers claim up to a 50% gain.

What does everyone think?

Thanks,
JC

[kennith 68]

I have a jb converstions supershort sye in my jeep tj works good vary clean looking no problems with it yet. They forgot the yoke nut in package i called them up lady was vary nice toke only about 4 minites and they shiped me a one in 2 days.

[runemuck]

I have the Advancs adapters and have had no problem .. But to answer your question The JB sye claims to be better/stronger and if you go to the site you can see a vid on it..

[wheelin352]

i agree jb short shaft best you can get

[Little Jeep]

Originally Posted by wheelin352

i agree jb short shaft best you can get

I can't believe that I am typing this, but the JB short shaft maybe over kill.... What does rest of your build look like? I have the AA SYE, and never had an issue.

[jcarlos]

Rest of the build so far...
Howell TBI
RE 4.5" Extreme Kit
Running 33" Tires

Next add on's include:
SYE
CV Drive Shaft
RS (M.O.R.E kit) for front

Add on's with in the next 6 months include:
Rear axle kit with locker (either going with the for 8.8 or sticking with D35 for the time being)
Front axle kit for D30
TeraFlex Belly Up kit
Terraflex Sway bar system

That's the plan as of now.


JC

[oldjeep]

I've never heard of anyone breaking the cheap Omix SYE's that everyone and their pet monkey sells. I've installed 5 of them so far on rigs with up to 36" tires with no issues.

[Boco]

I run 35"s krawlers with a spooled chromo 44 rear, a locked d30 in the front. And I have a JB conversions SS SYE. It's really nice to only have to worrry about my front axle, as everything is holding up as good as the day I installed it.

[Little Jeep]

Your build is a lot like mine. I have the 3.5 R.E. kit and the 8.8 axle. I have the AA SYE and have had zero issues. Look at the cost difference between the JB SYE and the AA SYE/Tom Woods Shaft deal to determine which is best for you. I assume you are not going to do the SYE until you do the axle swap. Is this correct?

Originally Posted by jcarlos

Rest of the build so far...
Howell TBI
RE 4.5" Extreme Kit
Running 33" Tires

Next add on's include:
SYE
CV Drive Shaft
RS (M.O.R.E kit) for front

Add on's with in the next 6 months include:
Rear axle kit with locker (either going with the for 8.8 or sticking with D35 for the time being)
Front axle kit for D30
TeraFlex Belly Up kit
Terraflex Sway bar system

That's the plan as of now.


JC

[lowrider_31]

I'm running the JB conversions SS SYE with a cut down XJ front shaft and a locked 8.8 on 35's. I haven't had any problems with it and I am hard on equipment.

[jcarlos]

Originally Posted by Little Jeep

Look at the cost difference between the JB SYE and the AA SYE/Tom Woods Shaft deal to determine which is best for you.

From what I'm seeing the JB might be the best deal (only $199. on their site). All the AA ones I see are around $225.

And yeah... I'm not going to pull the trigger until I decide on the Axle. But that is going to be in the next 2 weeks. Trying to move rather quickly on the build as I want to get the rig back on the road.

[crusty1007]

How do you adjust for tire size & Ring/pinnion when using the JB Super Short SYE?

AA SYE 199.00 shipped (click here)

[willhf1011]

I got my AA kit for 199 at a WErock event. I haven't run it but am very happy with the quality of the parts/install.

[Little Jeep]

Originally Posted by crusty1007

How do you adjust for tire size & Ring/pinnion when using the JB Super Short SYE?

AA SYE 199.00 shipped (click here)

I'm confused......... SYE doesn't require adjusting to compensate for tire size and/or ring & pinion. You will want to adjust your pinion angle differently with a SYE depending upon what type of driveshaft you will run. This adjustment is made roughly by welding brackets on axle at approximately 12 - 15 degrees, then fine tuned by adjustable control arms (TJ) or shims on leaf sprung vehicle like a YJ.

[jcarlos]

Originally Posted by Little Jeep

I'm confused.........

Me Too... My Tire Size along with Ring and Pinion are not effected by SYE... am I misunderstanding something?

[oldjeep]

In a normal SYE and stock housing there is a plastic gear that you change out when you put on bigger tires or change your axle gears. The Super Short SYE uses a sensor like a rubicon has.

So, it seems like the PCM would need to be reprogrammed to get the speedo to read correctly

[Beat95YJ]

I have run both the standard JB and the short JB. Probably the strongest part of my case.

[crusty1007]

Originally Posted by oldjeep

In a normal SYE and stock housing there is a plastic gear that you change out when you put on bigger tires or change your axle gears. The Super Short SYE uses a sensor like a rubicon has.

So, it seems like the PCM would need to be reprogrammed to get the speedo to read correctly

Yes that was the point I was trying to make.
You are basically taking your 231 from just swapping out a gear (in the speedo) to the Rubicon style where either the PCM needs to be changed for Ring/pinnion or fooled via something like the Superlift speedo calibrator.

So it may be about the same price initially but add in the $200+ for the speedo calibrator just to gain a little over 1" in driveline length. @ that point 1" doesnt seem like a big deal to me.

[oldjeep]

Originally Posted by crusty1007

So it may be about the same price initially but add in the $200+ for the speedo calibrator just to gain a little over 1" in driveline length. @ that point 1" doesnt seem like a big deal to me.

Yup, and even if it's stronger - the SYE is not the weak link in a 1310 driveline.

[Ixer]

what about http://www.performanceoffroadcenter....oducts_id=153? cheaper and lifetime warrenty

[Beat95YJ]

Originally Posted by Ixer

what about http://www.performanceoffroadcenter....oducts_id=153? cheaper and lifetime warrenty

Cheaper and best often do not go hand in hand.

[crusty1007]

Originally Posted by crusty1007

AA SYE 199.00 shipped (click here)

Lifetime on this one too.

[oldjeep]

Originally Posted by Ixer

what about http://www.performanceoffroadcenter....oducts_id=153? cheaper and lifetime warrenty

That is an Omix SYE - work just fine, stronger than the driveshaft it'll be attached to.

[snohog]

I've been running the mega short kit from Rugged Ridge with a 5.7 HEMI, D60's with spools with 40's and it's holding up great. It's really short.

[jcarlos]

Thanks for all the great input. I think I'm going to order the JB. I was leaning towards the AA/Tom Woods Combo... but I heard that the AA is one of the companies that cuts a "core" shaft to make their kit.

As far as the Speedo thing goes. I'm not going with the Super Short kit because I just did the Howell TBI kit and it has an adaptor that goes inline with the cable speedo and I don't want the hasle of switching out to a new one.