changing gears in rear end
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Joined: Dec 2001
Posts: 99
Likes: 0
From: Pascagoula Ms
changing gears in rear end
I have a 94 coupe.. stock.. auto.. do not know what the gears are. how hard are they to change...want to come out of the hole a little quicker...drive on street full time...do not want to distroy gas milage too bad...? Getting my programer (hypertec) tomorrow and going to flowmaster 40 mufflers also tomorrow... just looking for the next mod. thanks terry tbmoore@cableone.net
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Re: changing gears in rear end (tbmoore)
I think you'll either have 3.07's like me, or 2.59's. If you have the 2.59's they HAVE to go .. the 3.07's are alright, especially if you do highway driving.
Check for G92 in your RPO list to know if you have the performance axle as well.
Check for G92 in your RPO list to know if you have the performance axle as well.
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Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Re: changing gears in rear end (tbmoore)
Found the RPO list where you said it was... where would I get a list of what all the codes mean?
Gm3 = 3.45
GT7 = 3.33
G44 = 3.07
G92 = performance ratio rear axle
G95 = Economy rear axle (bad.. very very bad.. lol:D)
Le Mans Master
Joined: Oct 2000
Posts: 6,362
Likes: 30
From: Oak Harbor WA
Re: changing gears in rear end (BAdAzZV8)
You have maybe 4 choices:
1. Change the current gears with newer gears up to a point without a carrier change. There is a kit for 3.73's that fit the 2.59 carrier available.
2. Change the whole pumpkin with a gear ratio of your chosing as available stock throughout the years.
3. Do the Dana44 conversion to the 6 spd gears. I did this for the 3.45 and stronger rear end.
4. There's surely another choice available here, but it escapes me right now. Gotta get a soda to wakeup. :crazy:
1. Change the current gears with newer gears up to a point without a carrier change. There is a kit for 3.73's that fit the 2.59 carrier available.
2. Change the whole pumpkin with a gear ratio of your chosing as available stock throughout the years.
3. Do the Dana44 conversion to the 6 spd gears. I did this for the 3.45 and stronger rear end.
4. There's surely another choice available here, but it escapes me right now. Gotta get a soda to wakeup. :crazy:
Drifting
Joined: Aug 2001
Posts: 1,606
Likes: 14
From: Vacaville, CA
Re: changing gears in rear end (tbmoore)
Changing the actual gears themselves requires some experience and knowledge. The gears must mesh "just right" or they won't last 1,000 miles. This requires shimming and checking run-out repeatedly. Almost everyone sends out their rear pumpkin for the pro's to complete the swap. This usually runs around $800-$1,000.
