Changing The Rear Differential
Thread Starter
Team Owner
Joined: Dec 1999
Posts: 26,555
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From: Florida
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Changing The Rear Differential
Just curious how big of a job it is to change?
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Re: Changing The Rear Differential (OHSIXX)
Mechanically pretty easy. The hard part, sometimes really hard, is getting the rear cross member out. On average probably takes 8 to 10 hours to do a complete swap.
Team Owner
Joined: Jun 2001
Posts: 43,136
Likes: 155
From: Thomson Georgia
Re: Changing The Rear Differential (69 N.O.X. RATT)
Me and a budiie did it in my driveway in about 6 hours from start to finish.....swithched out the 3:08 and were cruising down the road with the 3:73's installed that evening
Racer
Joined: Jul 2001
Posts: 281
Likes: 1
From: SA
Re: Changing The Rear Differential (Alwyn678)
6 to 10 hours seems right. Thats not counting mounting the new crown and pinion. Pretty basic job. Put a jack under the dif before you undo the crossmember bolts. Then easily let it down and drag it out. Put it back the same way. Dont forget to use new split pins in the trailing arms.
Race Director
Joined: Aug 1999
Posts: 18,126
Likes: 174
From: WI
Re: Changing The Rear Differential (OHSIXX)
OHSIXX,
If your smart you`ll pull back the carpet and cut a hole just above the 4 bolts that hold the diff to the crossmember, it makes "live" a little easier. (and you can pop rivet a piece of aluminum over the hole)
...redvetracr
If your smart you`ll pull back the carpet and cut a hole just above the 4 bolts that hold the diff to the crossmember, it makes "live" a little easier. (and you can pop rivet a piece of aluminum over the hole)
...redvetracr
Safety Car
Joined: Jan 2000
Posts: 4,143
Likes: 0
Re: Changing The Rear Differential (redvetracr)
;)
:cool: :cool: :cool: - Nice....plus you can't drop it on yourself that way ! :lol:
OHSIXX,
If your smart you`ll pull back the carpet and cut a hole just above the 4 bolts that hold the diff to the crossmember, it makes "live" a little easier. (and you can pop rivet a piece of aluminum over the hole)
...redvetracr
If your smart you`ll pull back the carpet and cut a hole just above the 4 bolts that hold the diff to the crossmember, it makes "live" a little easier. (and you can pop rivet a piece of aluminum over the hole)
...redvetracr
Pro
Joined: Apr 2001
Posts: 591
Likes: 0
From: Morinville Alberta
Re: Changing The Rear Differential (OHSIXX)
When I did mine I left the cover mounted and just removed the pumkin the trick to this is to look carefuly at the diagram in the Haynes manual as to the position of the yokes.
Burning Brakes
Joined: Oct 2001
Posts: 1,185
Likes: 0
From: New Wilmington PA
Re: Changing The Rear Differential (Aaron76)
I will need to do this soon.
Does anybody have a complete list of what is needed to swap the diff.?
I know I'll need the differential itself, since I'm going with different gears I'll need a different speedo gear. Anything else?
Does anybody have a complete list of what is needed to swap the diff.?
I know I'll need the differential itself, since I'm going with different gears I'll need a different speedo gear. Anything else?
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Safety Car
Joined: Jan 2001
Posts: 3,569
Likes: 1
From: Hawaii
Re: Changing The Rear Differential (redvetracr)
Yeah, what redvetracer said!!!
First time going from 3.08 to 4.56, not having correct parts, cutting holes, figuring it out = 16 hours
Going from 4.56 to 3.08 a month later = 4 hours
First time going from 3.08 to 4.56, not having correct parts, cutting holes, figuring it out = 16 hours
Going from 4.56 to 3.08 a month later = 4 hours
Melting Slicks
Joined: Jul 1999
Posts: 3,201
Likes: 0
From: Clifton Park NY
Re: Changing The Rear Differential (Maurice)
First time going from 3.08 to 4.56, not having correct parts, cutting holes, figuring it out = 16 hours
Going from 4.56 to 3.08 a month later = 4 hours
Going from 4.56 to 3.08 a month later = 4 hours
-Pedro
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Changing The Rear Differential (Aaron76)
Ive done it both ways. Once to replace the sideyoke retainer snaprings and once again to swap out the 3.08 for 3.90. I found it much easier to just drop the whole rear crossmember with the cover and diff intact. Then disassemble when the whole thing is out of the car.
Guest
Posts: n/a
Re: Changing The Rear Differential (Cookwithvette)
I will need to do this soon.
Does anybody have a complete list of what is needed to swap the diff.?
I know I'll need the differential itself, since I'm going with different gears I'll need a different speedo gear. Anything else?
Does anybody have a complete list of what is needed to swap the diff.?
I know I'll need the differential itself, since I'm going with different gears I'll need a different speedo gear. Anything else?
