Grigg, You might have saved me some time and trouble. I didn't realize the engine wouldn't have enough muscle to run the overdrive. I'll put cup holders in instead and enjoy a coffee as I go down the highway. The tractor is small as tractors go, an Oliver Super 55. It weighs about 3200 lbs. What kind of rig did they put those 5831 spicers in then if it wasn't something like my 2 ton with a 235 in it?
Paul

A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired.
1948 Chevy 2-Ton