Gear ratio

[coupe]

I'd like to change my gear ratio for my coupe, so it would rev less while cruising. It's a 1990 quattro, do gears from a front wheel drive tranny fit into my tranny to change gear ratio? Or what quattro tranny in witch car, model, year, do rev the less?

[AL80]

Well, correct me if i'm wrong (and i probably am) but i think deisels usually use longer ratios do to their lower revving engines. I know a lot of Golf boys use TD boxes on their modified cars, don't know about Audi's though........

[Vagsport]

Your Coupe q has a final drive ratio of 4.11:1, approx. 21.3 mph in 5th. The next higher ratio that you could fit to your Coupe (must be torsen box) is a 3.89:1, approx 24 mph in 5th will have to come from a 90 20V quattro. I don't know any other torsen box that will match your car.

Siena

[Stick Insect]

Sienna,

would that be the same ratio as mine?

My car is a 1990 coupe quattro 20V.

I have a strange noise from my transmission, I bought the car at 7K ( damaged repairable. There is a high pitched whine related to road speed from the gearbox quite horrible at high motorway speeds. it is possibly pinion bearings, there is a bit of transmission backlash possibly just normal quattro slack. when pulling away in second at low revs there is a 'mangling' noise very geary sound. I wondered if the car had been towed around with the front wheels off the ground and damaged the Torsen Diff which I think I have.

David.