3.73's in a4 camaro

camaro_ss_97_ · 12-01-2005, 07:27 PM

i have a set of yukon 3:73's and i had to have them replaced once do to back lash not being set just right. i have not had any problems since then

**p_funk22** · 12-02-2005, 06:20 AM

i think i'll have to replace mine too. i have some chipped teeth and bearings.

**p_funk22** · 12-13-2005, 12:27 PM

ok, so the shop i went to charged me $350 to inspect my diff. they said i needed new axles, bearings, posi, gears (due to chipped teeth) and quoted me at $2300. after shitting myself, i quickly began calling around trying to find a shop to get a second opinion. i found one and they inspected everything for FREE and said i didn't have any chipped teeth or bad bearings and deffinitely no bad axles. they said the pinion depth, preload and backlash needed adjusting. for 2 hours of labor and 2 shims it cost me $169. but since i ran it so long, the wear pattern was set and the whine is still there but not quite as bad and only from 40-45 mph and the vibration is gone at 80mph. so i spent $889 total to upgrade from 2.73's to 3.73's. this shop said they would have installed them for $150 which is less than the "favor" my guy did it for. it's official...i'm retarded.

**hammertime** · 12-18-2005, 02:06 PM

Originally Posted by p_funk22

ok, so the shop i went to charged me $350 to inspect my diff. they said i needed new axles, bearings, posi, gears (due to chipped teeth) and quoted me at $2300. after shitting myself, i quickly began calling around trying to find a shop to get a second opinion. i found one and they inspected everything for FREE and said i didn't have any chipped teeth or bad bearings and deffinitely no bad axles. they said the pinion depth, preload and backlash needed adjusting. for 2 hours of labor and 2 shims it cost me $169. but since i ran it so long, the wear pattern was set and the whine is still there but not quite as bad and only from 40-45 mph and the vibration is gone at 80mph. so i spent $889 total to upgrade from 2.73's to 3.73's. this shop said they would have installed them for $150 which is less than the "favor" my guy did it for. it's official...i'm retarded.

Man, I think I'd be reporting that first guy to the better business bureau.

Also, FYI - $2300 to rebuild a stock rear is insane! Check one of the site sponsors, complete bolt-in 9 inch or 12 bolts usually run about the same $$$ and offer much more durability!

**white98** · 06-02-2006, 05:04 PM

its set up wrong.
i've had my richmond 3.73's for a few months and just as quite as my original 2.73.
it takes a mechanic that knows what he's doing. had richmonds done by other mechanics and the noise was horrible.

**p_funk22** · 06-05-2006, 06:22 AM

i had it checked and adjusted by another shop and they said the wear pattern had already been set so i'm going to have some noise until i replace the ring and pinion, but it's been months and i haven't had any problems, just a little whine at 40mph, then it goes away.

**J'stransam** · 06-06-2006, 03:03 PM

Whats the around the average Price a shop charges to swap A4 to 3:73s.

**p_funk22** · 06-07-2006, 06:07 AM

i went to a general mechanic and it was $300 something, but then I went to a transmission shop and they said $150 if you provide the gears and bearings. They make a big difference.

**snkslyr02** · 06-19-2006, 07:45 AM

I had a richmond in my 98 and it was noisey i had it checked at the place i had it put in and it never went away. but i was told they were just noisey gears.

**snkslyr02** · 06-19-2006, 07:48 AM

another thing to add to this post i had a ring and pinion put in that was a GM part along with a auburn pro series posi unit. NOISY as hell maybe this one is set wrong but i believe that it is the posi unit.

**bluecamaro** · 06-21-2006, 07:38 AM

Just to add my 2 cents, but when I had my 2.73's replaced with 3.42's it was recommended that I also change the carrier, so I did that at the same time and never had any problems with noise or anything else. My gears were made by EATON. Anyhow, I hope it all works out for you.