Cascade Crew

91camaro_rs · Posted: Sat Apr 10, 2010 4:16 pm Post subject: rear end question

i have a posi with 3.08 and i want to put the posi unit in my rear end now that has 3.23, what all am i gonna need, i already have a cover gasket and fluid (0bviosuly) do i need axle seals or anything else? and should i rent a slide hammer or is there another way to remove the axles

Dewey316 · Posted: Sat Apr 10, 2010 5:00 pm Post subject:

The axles will come right out, once you remove the c-clips.

I would freshen up the axle bearings and seals while you are in there, its a good time to do it.

Since you are doing gears, will need a crush sleeve. I would get one of the solid types. Beyond that, you need all the seals/bearings that you will be doing. for both the axle and pinion.

91camaro_rs · Posted: Sat Apr 10, 2010 5:13 pm Post subject:

ok sounds good, thanks

this weekend is gonna be full of stuff to do, posi awap, motor swap...haha

Dewey316 · Posted: Sat Apr 10, 2010 7:39 pm Post subject:

also remeber, you will need a dial-indicator to check backlash, and make sure you do the wear pattern checks.

popballz · Posted: Sat Apr 10, 2010 9:28 pm Post subject:

If you need a slide hammer, I have a 5 lb. kit with a bunch of attachments.

91camaro_rs · Posted: Sat Apr 10, 2010 11:28 pm Post subject:

ok ill let ya know if i need it, wait if your comin over to help just bring it with you lol

91camaro_rs · Posted: Sat Apr 10, 2010 11:29 pm Post subject:

izcain · Posted: Sun Apr 11, 2010 11:49 pm Post subject:

Did you get a set of 3 series gears to install?
Your 3.08's are not going to fly since their from a 2 series carrier.

You will need a dial indicator that has a magnetic base so that you can attach it to the outside of the case and position the dial indicator on the ring gear and then rock the ring gear back and forth measuring the amount of back lash (back and forth movement of the ring gear before it moves the pinion)

Also when they are talking about checking the wear pattern you will want some paint and a small brush. You paint a couple of the ring gear teeth both front and back and turn the pinion to rotate the painted area around once. You then inspect the area and this will tell you is the gears are riding on the high side, low side, or in the middle. There is a coast side and a drive side of the ring gear and you need to pay attention to which side has what marks.

Rearend work can be a finicky job. Anyone can throw one together but it takes the right adjustments to make one last without howling and whining or having excessive backlash clunk

You will also need a rolling torque wrench so that you can set the pinion bearing preload. It will depend on what bearing you are using (used or new) to know how much to set the preload at.

If you need help once you run a pattern on the gears just post a picture Im sure myself or one of the other guys can tell you by the look of the mesh how your gears are meeting one another.

I set up my customers gear depending on how they are planning on driving and what the primary use of the car is going to be.

Hope this helps a bit!

Quasi-Traction · Posted: Mon Apr 12, 2010 3:30 pm Post subject:

If you want to use that 2 series Posi carrier, but retain the gear ratio that you have now, you can always get a ring gear spacer and run the 3 series ring/pinion gear on a 2 series carrier.

http://www.speedwaymotors.com/7-1-2-Inch-GM-Ring-Gear-Spacer-with-Bolts,7534.html

This will save you from having to remove the pinion gear from the axle on your car now. You may have to change the axles themselves though if your 2 series posi carrier is a 26 spline.

91camaro_rs · Posted: Mon Apr 12, 2010 3:33 pm Post subject:

i decided im just gonna stick with the 3.08's, so im gonna put the 3.08 posi inside the rear end thats on my car now, and i gonna switch the axles as well

91camaro_rs · Posted: Mon Apr 12, 2010 10:08 pm Post subject:

anyone willing to help me with this? i have no experience with rear ends whatsoever, i want to do it this weekend (same time im doing motor swap)

Im willing to pay for gas, and more on top of that, can pay in brewskies as well

Twilightoptics · Posted: Tue Apr 13, 2010 5:24 am Post subject:

The motor swap will take more than the weekend. If I were you, I'd concentrate on one thing at a time! Wink

aaron_sK · Posted: Tue Apr 13, 2010 6:13 am Post subject:

Alphius · Posted: Tue Apr 13, 2010 6:26 am Post subject:

for sure.

I'd focus on one at a time. I also may be able to come help a little bit over the weekend. I'll have to confirm my schedule with some people first. Wink

91camaro_rs · Posted: Tue Apr 13, 2010 6:49 am Post subject:

okay sounds good, and im not working alone haha some of my car savi friends are helpin me out, not sure what days they are coming exactly, i know donald is comin on saturday

changed my mind on what im doin with the posi, ill just use the rear end that its in a switch over all the brake stuff, that should be a lot easier

aaron_sK · Posted: Tue Apr 13, 2010 5:14 pm Post subject:

Dude, you had to pick the weekend we're up at Port Gamble, and opening weekend at PR. Doh!

Shoot me a PM with your address and cell #. I'll try and make it up Saturday.