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Old May 5, 2005 | 05:16 PM
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Default Differential Mod

I'm thinking of upgrading my differential to 3.90 or 4.10..but does this mod require anything else..or is it a simple bolt on???
Thanks for any help!!
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Old May 5, 2005 | 05:19 PM
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our differentials are very different than the straight axels in the F-bodies...a little bit more work...no modifications just a good installer to build the diff for you otherise it will howl.

Chris
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Old May 5, 2005 | 05:23 PM
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Originally Posted by B.A.D.c5
I'm thinking of upgrading my differential to 3.90 or 4.10..but does this mod require anything else..or is it a simple bolt on???
Thanks for any help!!
You will need to reprogram the PCM I believe.
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Old May 5, 2005 | 05:43 PM
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Originally Posted by shurite44
You will need to reprogram the PCM I believe.
Ah yes.. i have heard that...thanks
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Old May 5, 2005 | 06:16 PM
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Old May 5, 2005 | 06:38 PM
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You will only need to reprogram if you have an A4. Texas Auto Gear located off of I45 a little North of downtown are excellent builders. They will charge $250 if you bring them the differential. They build for pretty much all of the Houston shops when it comes to the C5.
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Old May 5, 2005 | 07:00 PM
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Originally Posted by Cajundude
You will only need to reprogram if you have an A4. Texas Auto Gear located off of I45 a little North of downtown are excellent builders. They will charge $250 if you bring them the differential. They build for pretty much all of the Houston shops when it comes to the C5.
hell yeah!! thanks!
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Old May 5, 2005 | 07:30 PM
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just called them...$1150 for 3.90!!..and no core charge since theyre local...hell ya!
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Old May 5, 2005 | 08:51 PM
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Originally Posted by Cajundude
You will only need to reprogram if you have an A4. Texas Auto Gear located off of I45 a little North of downtown are excellent builders. They will charge $250 if you bring them the differential. They build for pretty much all of the Houston shops when it comes to the C5.
Ive never seen a shop do it this cheap.They will install a diff for 250.Thats worth the 8 hour drive just to save the ching(800) that gm quoted me.
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Old May 5, 2005 | 09:31 PM
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Originally Posted by sshole
Ive never seen a shop do it this cheap.They will install a diff for 250.Thats worth the 8 hour drive just to save the ching(800) that gm quoted me.
They will put the gears in the diff for $250, the R&R is $450.00. Sorry for the confusion.
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Old May 5, 2005 | 09:39 PM
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Originally Posted by Cajundude
They will put the gears in the diff for $250, the R&R is $450.00. Sorry for the confusion.
Still gm wants 800 bucks.Id still make the drive.
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Old May 5, 2005 | 09:41 PM
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You will only need to reprogram if you have an A4. Texas Auto Gear located off of I45 a little North of downtown are excellent builders. They will charge $250 if you bring them the differential. They build for pretty much all of the Houston shops when it comes to the C5.
you guys are soooo lucky to have a local shop that's experienced with the unique C5 carrier.

I envy you - BIG TIME
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Old May 5, 2005 | 10:02 PM
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Originally Posted by Mike Mercury
you guys are soooo lucky to have a local shop that's experienced with the unique C5 carrier.

I envy you - BIG TIME
yes. it is true. we are blessed
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