speedo drive gear same for 3.08 and 2.73?
10-20-2006, 11:49 AM
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Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
speedo drive gear same for 3.08 and 2.73?
Should I be able to swap the driven gears for the speedos for a 2.73 rear end that was put in place of the original 3.08, without swapping drive gears? I can pull the drive and driven gears from an existing f-car with 2.73 if I need to but taking both tailshafts out may not be worth the effort for the 10% or so the speedo is off.
For confirmation that I've got the correct drive gears while I'm there, can I verify which drive gear is in the tailshaft once I pull the driven gear? Been a while since I was there.
For confirmation that I've got the correct drive gears while I'm there, can I verify which drive gear is in the tailshaft once I pull the driven gear? Been a while since I was there.
10-21-2006, 02:52 PM
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
do this and if everything works out then yes
10-22-2006, 09:45 AM
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Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
The drive gears were the same (red) and were easily visible through the driven gear port. So no worries.
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