I recently change my ring and pinion to a 3.42 ( I use to had a 4.11) and I had 29 inches tall tires, the problem is since I change it, my speedometer went "crazy", when I'm at 55 mph it reads 85 mph, so, I need to know wich speedometer gear I need to use in my tranny (th 350), if any one knows, please let me know, thanks...
Hmmm....55 reads 85?? Great way to impress the impressionable.
Anyway, here's a link for some info on GM cars.
9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 5.14, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 5.83, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 4.71, FORD 9 INCH GEARS - RING AND PINION 6.0 F890600 MOTIVE GEAR, FORD 9 INCH GEARS - RING AND PINION 4.57 457 FOMOCO, 9" Ford Lightweight Ring & Pinion - 9 Inch Gears - 6.20, 9" Ford Lightened Ring & Pinion - 9 Inch Gears - NEW!!!, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 5.43, 3.08 ratio 8.8 inch Ring & Pinion Mustang NASCAR ARCA, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 4.30, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 3.25 Ratio, 9" Ford Lightweight 6.66 Gears Ring Pinion - 9 Inch 666 Ratio - Rearend - NEW, 9" Inch Ford Pro Gears 35 Spline Ring & Pinion 9310 NEW, 9" Ford Lightweight 6.83 Gears Ring Pinion - 9 Inch 683 Ratio - Rearend - NEW, 9" Ford Lightweight Ring & Pinion - 9 Inch Gears - NEW!, 9" Inch Ford Pro Gears 35 Spline Ring & Pinion 9310 NEW, 9" Ford Lightweight 6.66 Gears Ring Pinion - 9 Inch 666, 8 Inch Ford Gears - 8" Ford Ring & Pinion - NEW - 4.11, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - IMCA, NASCAR Ford 9" inch ring and pinion set 4:63 ratio, NASCAR Ford 9" inch ring and pinion set 4:71 ratio, 8 Inch Ford Gears - 8" Ford Ring & Pinion - NEW - 3.80, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 5.00, 8 Inch Ford Gears - 8" Ford Ring & Pinion - NEW - 3.55, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 5.29, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 3.00 Ratio, 9 Inch Ford Gears - 9" Ford Ring & Pinion - NEW - 6.50, NASCAR 10 ARP Pro Ring and pinion bolts ford 9" inch, 9" Ford Lightweight Ring & Pinion - 9 Inch Gears - 5.43, FORD 9 INCH RING & PINION,