[Lobo'74]

Just got back from checking my speedometer. Checked against a new Audi (neighbor's) at 25, 35, 45, 55, 60, 65, and 70. Speedometer was right on the money at each speed. In 4th, 55 is 2200 rpm, and it goes up 200 rpm per 5 mph, up to 2800 at 70. Again, 31" tires, 4.10 (or so) rear end. Speedometer gear the shop put into the tranny was based on telling those figures to the transmission shop.

Althought it is a mystery to me, the three speed was 3000 to 3200 at 70. Only theory I have is: Since the rpm is read off the distributer and the mph is read off the transmission, a badly slipping clutch would mean higher rpm's to get the transmission turning at the "correct" speed for the mph. New, tight, high performance clutch with centrifugal weights on the fingers with NO slip turns the transmission at the correct speed without working the engine faster to get there through the slippage. Kinda like tires spinning on a slick road showing you are at 20 mph when you're not even moving...

Only explanation I have unless someone else has a better one.

I'm just happy with the smooth, positive shifts and more useful gearing. Much more fun to drive.