3.73 gears
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On The Tree
Joined: Aug 2003
Posts: 146
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3.73 gears How hard is it to put in a set of gears? Is there an installation thread anywhere? Guaging interest in swapping from my 3.23's to 3.73's. I have a 98 Trans am a4 with 118000 miles, headers, lid, filter, free mods. Any advice?
Joined: Dec 2001
Posts: 12,829
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From: Central Indiana Honors: 4th grade spelling bee contestant
That's the one mod I left up to someone else more qualified. I took mine to Finish Line Performance and let them install my 3.73's.
I wrote a how-to for it...at the very least you can see what the process entails and decide if it is something you can perform or not.
http://www.keliente.com/gears.htm
http://www.keliente.com/gears.htm
TECH Regular
Joined: Jul 2005
Posts: 427
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From: B'ville, New York
I got my gears installed for the price of $175 @ New Era Performance and the gears from Summit were $230. I felt better with that price letting someone do it with all the shiming involved, I would say to try it if you have a lift or are really good at spending time underneath the car getting the backspacing and measuring involved on the install. Then you should get a tune not only for the gear change but for the shifting/performance. Other then the speedo being off I felt my car didn't shift great, too soon/too late. I got the tune for the guys who put the gears in and what a difference. I just got done with the axles and wheel bearings myself so when it was all said and done I have spend $700 on the rearend with the diff being the only original part, I wish I could have had the money for a 12bolt but now I got to see the 3.73 in an A4.
