Dana20 (4:1 kits)
I'm setting my '77 Bronco up for better off-roading. Currently, I have 3.50 gears and the stock drivetrain, giving me a crawl ration of approximately 21 (yuch!). I will put a granny tranny in it for sure, but I want to leave the 3.50's in the axles for on-road driveability since this truck will see LOTS of street miles. I want it to be an all-around killer machine... great off-road performance with plenty of comfort on-road.
So, I've considered converting the case to 4:1. How many different companies offer this kit? I don't think the case has been opened, so should I just replace all the seals while I'm at it? What about the bearings?
Any and all info will be greatly appreciated. THANKS!!