Tire size change, gearing change
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Supreme Member
Joined: Aug 2001
Posts: 1,041
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From: Troy, MI, USA
Tire size change, gearing change
This is non thirdgen induced, but aplicable...
I am looking at a 1982 Chevy Scottsdale right now, it I lifted, with 33" BFG Mud-Terrain T/A's, running 3.73 gears. I was thinking *if* I got it, maybe I would put 35" tires on with some steeper gears *eventually*
Anways, the point - How would I figure out what gearing to use? right now, the speedo seems correct (33" tire, 3.73 gear). What do i do to find the right gearing for 35" tire??
I am looking at a 1982 Chevy Scottsdale right now, it I lifted, with 33" BFG Mud-Terrain T/A's, running 3.73 gears. I was thinking *if* I got it, maybe I would put 35" tires on with some steeper gears *eventually*
Anways, the point - How would I figure out what gearing to use? right now, the speedo seems correct (33" tire, 3.73 gear). What do i do to find the right gearing for 35" tire??
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Joined: Jul 2001
Posts: 3,974
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From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
Go to www.700r4.com and check thier calculator. The new tires should only slow down the speedometer by 5/6 MPH so you would need a driven gear with two more teeth, but I would check that site to make sure what you have in there now is correct.
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