[dennislbrooks]

With a 4.11, 30 inch tire, and .70 OD at 75 mph is about 2450 rpm. Taller tire will drop rpm more.

OD on a 700r4 should come in at about 45 mph under mild aceleration -- lockup right after unless switched.


With 3.55 gearing -- about 2200 rpm at 70 mph. This matches my 70 olds 442. Lockup will drop another 200 rpm.

My 67 K10 with 3.73 gearing and 31 inch tires runs about 1750 rpm at 60 mph with lockup. BBC --- averaged 14 mpg on a 200 mile trip.

Just numbers for consideration.

Not sure what OD is for a T5 but probably .7 or so. -- Nothing wrong with a stick. I have an 85 vette with 2 OD gears in a stick.