ratios

Hi Gents I know there has been a lot of discussion around gear ratio's but I would like some feed back on what you think is the best final drive ratio for the street. I'm running a Porsche G96 3.44:1 on 25" rubber. Although I haven't done many miles it just seems too low. So before I shell out...

This is a photo of the ID plate on my ZF transaxle. The gear ratios seem low to me given the output horsepower of the 289 circa 1967, but I'm hoping someone might have some insight as to why the ratios are as they are and perhaps what the ID numbers mean. Thanks, John

I'm still busy researching alternative gearboxes for my GTD (engine is a 302). I have narrowed the choice down to two, both based on the 3.44 final drive. The UN1-013 was originally specified for the 21 Turbo. The other box, UN1-07 was specified for the Alpine Turbo. The boxes are very similar -...