Cascade Crew

nonsensekid20 · Posted: Fri Jan 13, 2012 5:53 pm Post subject: Posi rear axle assembly

I was going to just swap the carrier in my peg-leg, but I don't want to do it myself and everyone wants $500 to do it. So I'm looking for a disc brake, 9 bolt if possible, and 3 series rear end. And if possible relatively low miles. I'd like to not have to rebuild it in a few years.. And can someone answer the question of why the hell everyone wants so much to do this? I realize a lot goes into it but damn!

fiveoformula · Posted: Fri Jan 13, 2012 7:43 pm Post subject:

Your paying for the experiance really, the guys that are good at setting up rearends have usually been doing it for a long time and have probably screwed up 1 or 2. lol You want it done right.

nonsensekid20 · Posted: Fri Jan 13, 2012 10:12 pm Post subject:

I figured that. But sadly I don't think it's really worth it. I think I'd rather buy a BW 9 bolt that'll be stronger than the 10 bolt. Another question, what kind of posi came in those BW's? And how long until it has to be replaced/rebuilt?

BluFbdy · Posted: Sat Jan 14, 2012 7:36 am Post subject:

Its a PITA yo set up lol the first time I did one I was on it for hours, 2 crushsleeves later I got it done right, its a money maker for people who are good at it lol the carrier only needs to be serviced based on how you drive it, beat it like crazy and expect o get work done.

The only downside I see to the 9 bolt is parts, they were a pain to find in AZ I'm not so sure about here, one of my buddies had to order parts in from all over the US just to get his repaired from a track mishap

Alphius · Posted: Sat Jan 14, 2012 8:32 am Post subject:

Everything you need for the 9 bolt (but expensive):

http://www.9bolt.com/

The posi in them is a friction cone type and the cones are replaceable if they are overly worn out. Driving style changes wear, so there's no way to say "after 100k miles they're worn out" or something. If you buy one, just pop the cover and check the cones according to the guide on that site.

nonsensekid20 · Posted: Sat Jan 14, 2012 12:56 pm Post subject:

So say I wanted to install my carrier after all, how much would I be expecting to pay for an install kit? Really all that I have is the carrier with the bearings, and the ring and pinion. There's a guy that will install it for $200-$250 in labor but he said out the door I'd be looking at more around $500.

Al Hasse · Posted: Sat Jan 14, 2012 2:02 pm Post subject:

How many splines in the carrier? You need to make sure your axles will fit in it, 3rd gens up until about 1989 had 26 spline axles, some 89's and 1990-1992 all have 28 spline axles.

nonsensekid20 · Posted: Sat Jan 14, 2012 2:15 pm Post subject:

28 spline. The carrier is out of a 4th gen. Zexel Torsen 3 series. I haven't actually counted the splines in the carrier nor am I very familiar with 4th gens but I'm pretty sure its a 28 spline axle assembly.

Alphius · Posted: Sat Jan 14, 2012 2:21 pm Post subject:

Yep, the Zexel is a 28-spline unit.

Are you changing gears at the same time or just the carrier?

nonsensekid20 · Posted: Sat Jan 14, 2012 2:52 pm Post subject:

Gears too. Same ones Andy had. Richmond 3.23s IIRC.

nonsensekid20 · Posted: Tue Feb 14, 2012 8:41 pm Post subject:

Bump. Still looking for a posi disc brake rear end. 3.73's or 4.11 gears. Doesn't necessarily need to be a 9 bolt but it would be better if it was.

turbo_jimi · Posted: Fri Feb 17, 2012 10:09 am Post subject:

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Or even 3.08. Seems like a lot that I have looked at have the lower gears.

aaron_sK · Posted: Fri Feb 17, 2012 10:16 am Post subject:

I have seen everything from 2.77 to 3.70 in factory 9-bolts.

You are correct that 3.27 is the most common 9-bolt ratio (LB9 and L98 w/700R4 and G92 package) and 3.70 is the rarest (85-85 T/A with L69/T5 and G92 package).

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

I was thinking of posi rear ends as I also am in the market. What's most command on those

Alphius · Posted: Fri Feb 17, 2012 12:23 pm Post subject:

If 3.27 is most common then I'd say 2.77 is next.

3.45? 3.70? Nearly impossible to find.