Hey people. Wondering if anyone could tell me that has put the 3:45 diff gears into a vl v8 before that had 3:08 from factory ,I want the speedo to read as close as i can to 100% accurate, what gearbox drive cog do i need to use with a Trimatic 3 speed box?? also what rpm will i be sitting at 100km p/h? Will have 10.5:1 comp n crane 286 camshaft and 3:08's are going to be too tall. Thanks

Around 3 at 100 Klms

ruben is about right mine with 3.7 was about 3500@100