Topic: Cv Style rear driveshaft

[oldjeep]

Yes, I'm comparing the stock shaft that you would hack and tap with the most common full SYE's.  Any decent full SYE has an increased diameter at the speedo gear section.   Some places are selling cut shafts for 242's since nobody makes a full replacement shaft.

[Bounty Hunter]

Jeffy, you had the bottom two shafts reversed.  Middle is a stock TJ mainshaft cut for a H&T, and the bottom is a YJ shaft.  The TJ shaft has the extra journals on the end for the seal, and a different hub surface that includes a groove since no roller bearings are used inside the TJ hub.  My YJ mainshaft was a rare breed, being a '95 it had similarities to both the TJ and YJ shafts.


That being said, I run a H&T and haven't had any issues.  I used a shortened front CV shaft from an XJ/TJ and simply replaced the front half of the CV with a flange mount to mate to the H&T.  Not as short as a standard HD SYE but it works.  I saved some $$ and used the TJ H&T with a TJ mainshaft and tailshaft housing.  A lot cheaper.

I've only replaced one broken stock mainshaft in a 231, and the guy was jumping his jeep.  It broken in the same place as in oldjeep's pic.  I think his wheels were spinning in the air, and when the front end landed they slowed down suddenly.  The remaining inertia in the rear tires caused the mainshaft to snap like a twig.

I think I'm gonna go with the super short SYE from PORC, it's only around $230 and it's a ton of extra driveshaft length.  The speedo will be close enough for the ECM to function correctly, that's all I need.

[jfrabat]

ANything but a hack and tap.   
Most places sell the OMIX ada SYE, I've installed 3 of them and they are beefy and the kit fits well.
Here's one place to get it.
http://www.performanceoffroadcenter.com/oscommerce/product_info.php?products_id=153

I bought one of those, and have not had any problems with it (had it in for about a year now).  In fact, I am not even sure if I received a PORC or an Advanced Adapters one, as the instructions it came with were from Advanced Adapters (I understand that the PORC one is a copy of the AA SYE anyway).  As for the shaft length, if you do plan on spending the extra doe, youcan go the route that I went with, and call Tom Woods and tell him your current dimensions before the lift, tell him the kit (lift and SYE) you are planning to get, and they'll send you a shaft with the correct measurements (they cannot guarantee that, but mine was dead on).

Felipe