Gear Ratios
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 734
Likes: 0
From: Seattle, Washington, United States
Car: 1986 Trans Am WS6
Engine: Mild 350 TPI
Transmission: 700R4
Gear Ratios
Well today i was taking the back plate off the rearent to change the seal and fluid and i come to discover my real gear ratio. For the past year everyone has been telling me since its a 9bolt rear and my uncle who special ordered it said it was a 3.2 something that it was a 3.23 ratio. Another reason why we figured so was because it did quit well off the line. What i discoverd just a few minutes ago was that its really a 2.77 ratio!!!
O well, my car is fast enough for now the way it is. I guess thats also why i can burry the 140mph speedo no problem.
O well, my car is fast enough for now the way it is. I guess thats also why i can burry the 140mph speedo no problem.
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 734
Likes: 0
From: Seattle, Washington, United States
Car: 1986 Trans Am WS6
Engine: Mild 350 TPI
Transmission: 700R4
Does anyone think a 2.77 ratio will really set me back in the 1/4? Im guessing everyone would recomend a better ratio like a 3.27 or a 3.45? Also is it really expensive to change from a 2.77 to a 3.27 or 3.45? Thanks
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