Sye Needed On Short Bed??

[johnny quest]

Do I need to do an SYE on my 231 with a shortbed that's got a SOA in the rear??

[johnny quest]

Let me explain better: does my truck need it, or am I wasting time/money on something that isn't necessary.

[NotMatt]

You do not. My brother's short bed truck was SOA in the rear and never had a single problem with driveline angles with AW4/231 combo. Also, you should not have any driveline bind... but if you DO, you can clearance the driveline yoke a slight amount with a die grinder and get away with it, at least temporarily so the truck is driveable.

 

Another option, if you need more yoke length and a little more room for the u-joint to move around, is a slip yoke from a stock YJ driveline. It's about an inch longer in length, and the ears are larger to allow for more movement. Swap that onto your stock driveline after the SOA and you'll be golden.

[Zebvance]

Depends on how much lift u have. I just ordered one for my swb mj. I have soa with a total of 7.5-8.0inches of lift in the back. I have very slight vibrations around 25 mph then they go away.

[Zebvance]

So anything under 7.5 I would say no you do not need one. But you will need a longer driveshaft. I have one for about 4.5-5.5 inches of lift I will be selling as soon as my sye and Tom woods drive shaft come in.

[johnny quest]

SOA 14 bolt on stock springs gave me about 4.5" or so. So I should be fine??

[Zebvance]

I would say you are but prob still need a longer drive shaft. Post a picture of where your driveshaft attaches to the tail housing of your transfer case

[NotMatt]

SOA 14 bolt on stock springs gave me about 4.5" or so. So I should be fine??

 

Hard to say, but the 14 bolt is longer in the snout than any of the options of what you might have pulled out, so you should be fine. Only way to know is to bolt it up and have a look see. Post a pic after you get it bolted up like Zebvance said, or simply compare the area that's polished down by the seal on the yoke to where it fits now in the slip.