Trying to figure out what rear is under my truck. Pics:

http://www.speedyoldtruck.com/images/ramp4.jpg
http://www.speedyoldtruck.com/images/ramp12.jpg

Dash lists gear ratios on dual speed rear at something ridiculous like 6.17 and 8.40, I've got a lead on a 6.5 NA Diesel from a late 90's cube van that I'd like to put in the truck, curious what my options are for gears that aren't quite so deep. Considering a Spicer 5053A 5-speed overdrive behind the diesel, so I'd have some OD, but would like to have enough to be able to cruise at ~75 without having the motor absolutely screaming.


God is not on the side of the big armies, but of those who shoot best.

http://www.speedyoldtruck.com