Difference between rear ends??
07-19-2014, 08:19 PM
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Difference between rear ends?? Ok so I am wondering if there is a difference between a 99 V6 firebird rear end and a 00 trans am. The reason why I am asking is that I have some 3.73 gears that were for the V6 but I now have a trans am and I want to put the gears on that.
07-20-2014, 06:39 AM
#3
Could be a BIG difference making them not useable for your application !!!
Most V6 had 3.08s' which were on a 2 series carrier,some V6 had a option of 3.42s' which were on a 3 series carrier.
Since you didn't state what your TA has,A4 with 2.73s'(GU2) 2 series or 3.23s'(GU5) 3 series OR M6 3.42s'(GU6) 3 series,the series of the 3.73 gearset has to be the same as the carrier currently in the TA.
Most V6 had 3.08s' which were on a 2 series carrier,some V6 had a option of 3.42s' which were on a 3 series carrier.
Since you didn't state what your TA has,A4 with 2.73s'(GU2) 2 series or 3.23s'(GU5) 3 series OR M6 3.42s'(GU6) 3 series,the series of the 3.73 gearset has to be the same as the carrier currently in the TA.
07-20-2014, 10:54 AM
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Could be a BIG difference making them not useable for your application !!!
Most V6 had 3.08s' which were on a 2 series carrier,some V6 had a option of 3.42s' which were on a 3 series carrier.
Since you didn't state what your TA has,A4 with 2.73s'(GU2) 2 series or 3.23s'(GU5) 3 series OR M6 3.42s'(GU6) 3 series,the series of the 3.73 gearset has to be the same as the carrier currently in the TA.
Most V6 had 3.08s' which were on a 2 series carrier,some V6 had a option of 3.42s' which were on a 3 series carrier.
Since you didn't state what your TA has,A4 with 2.73s'(GU2) 2 series or 3.23s'(GU5) 3 series OR M6 3.42s'(GU6) 3 series,the series of the 3.73 gearset has to be the same as the carrier currently in the TA.
07-20-2014, 12:08 PM
#7
"How do you find this out??"
your option code sticker would indicate GU2(2.73) or GU5(3.23).
if sticker is gone,other clues would be,GENERALLY 2,73s' got a steel driveshaft,3.23s' got an aluminum driveshaft. GENERALLY with 2.73s' the gear selector couldn't be put to the 1st gear position because it was blocked by a plastic tab. Final resort:driveshaft rotations to one wheel rotation,2.73=2 3/4 turns,3.23=3 1/4 turns.
your option code sticker would indicate GU2(2.73) or GU5(3.23).
if sticker is gone,other clues would be,GENERALLY 2,73s' got a steel driveshaft,3.23s' got an aluminum driveshaft. GENERALLY with 2.73s' the gear selector couldn't be put to the 1st gear position because it was blocked by a plastic tab. Final resort:driveshaft rotations to one wheel rotation,2.73=2 3/4 turns,3.23=3 1/4 turns.