VHR + FD Gear Ratio upgrades - 3.9 and 4.08

Denny McLain

Should know next week as the gears that were ordered should arrive pretty soon.

It may be a bit difficult to find people to install the gears as two shops I approached knew nothing about the car and did not want to touch it. I'll contact the local dealer to see what they say and also a trans shop that a Porsche aftermarket tuner shop referred me to.

Gear installs are fickle almost falling into an art and I've screwed up installing them before so I won’t dare try. Even someone who writes automotive text books (Bob Norwood… on one of my cars!) has screwed up installs, so the install is critical. Also, going to make sure all the necessary shims are there as w/o the correct shims, the car can sit on a hoist for days waiting the correct parts.

My opinion gears are worth the hassle and if necessary will just let them sit in my garage until the right shop is found.

Have a spreadsheet to plug numbers into that computes average hp during a simulated 1/4th run. Haven’t crunched the numbers yet and curious as to how it comes out, but gears helps the car get into the powerband quicker and multiplies torque. The real deal.