ZR-1 Net Registry Forums - View Single Post - WTB 1991 Corvette ZR-1 in Turquoise Metallic

XfireZ51 · 02-14-2015

I swapped out the 3.45 rear for 3.73. That rear gear plus the stock speedo gear work out to within 3mph error at 70mph when using the 19" wheels. Close enough for horseshoes and hand grenades.

02-14-2015	#5
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: WTB 1991 Corvette ZR-1 in Turquoise Metallic I swapped out the 3.45 rear for 3.73. That rear gear plus the stock speedo gear work out to within 3mph error at 70mph when using the 19" wheels. Close enough for horseshoes and hand grenades.