[70STOVEBOLT]

Originally Posted by ole dollor

longbed67, yes the hei was my first up grade, man it made a big difference, and the a/c is a must for old fat guys in texas...it does not look like much, but almost everything form brakes and suspension are done, power steering is next, then cab mounts, and auto. trans. looks like everyone is still running their 4 blade fan, i put a clutch fan on mine, i change from the 373 rear end gear to a 276 gear. that has given me over 18 mpg.

2.76 is pretty fast, does it seem to have enough power on take off or is it really slow now? I have 3.73's and a 250 with a TH400 auto and I have been contemplating a gear change. In fact, I have not seen anything faster than a 3.07 for the 12 bolt diff. Where did you get the gears?

Thanks,
Mark