speedo gears
Thread Starter
Junior Member
Joined: Sep 2004
Posts: 3
Likes: 0
From: mi
Car: 1991
Engine: 305
speedo gears
What size speedo gears do i need if Im going from 273 to 342 ?
My car is a 1991 firebird formula 305 auto. Ive called trans shops and the GM dealer no one knows
My car is a 1991 firebird formula 305 auto. Ive called trans shops and the GM dealer no one knows
Member
Joined: Sep 2003
Posts: 107
Likes: 0
From: Lyon,MS
Car: 1987 TransAm
Engine: 350 Goodwrench
Transmission: 700R-4
With a 5 speed drive gear 7 teeth speedo gear 19or 20. With a 700r4 drive gear 15 speedo gear 41or 42. Speedo gear will depend on tire size. Check out Trickster's chart on my question Speedometer drive gears.
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