Gear ratios
Thread Starter
Junior Member
Joined: Jun 2007
Posts: 71
Likes: 1
From: Fort Collins, CO
Car: 1991 Pontiac Firebird
Engine: 305 TBI
Transmission: 700r4
Axle/Gears: 3.42 posi
Gear ratios
Ok so I hat 2.73 gears in my 1991 firebird, went to 3.42 gears and they crapped out on me, maybe I just installed them poorly... anyways I didnt notice a whole lot of difference between the ratios, which I think is odd. Anyone recommend a ratio for me?
Engine is almost completely stock
-8.8mm wires
-high perf. dist cap and rotor...
-3" exhaust to cat
transmission is 700r4, stock... I'm new at tranny/axle work so I need your opinions. Thanks!!
Engine is almost completely stock
-8.8mm wires
-high perf. dist cap and rotor...
-3" exhaust to cat
transmission is 700r4, stock... I'm new at tranny/axle work so I need your opinions. Thanks!!
Supreme Member
iTrader: (2)
Joined: Aug 2007
Posts: 2,529
Likes: 1
From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
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