I supervised a dredging operation for 6 years that had 4 Detroit 4-53 engines on a tug boat, a barge and a pile driver. When we pumped the bilges, the effluent was mostly oil. The worst thing was the loud exhaust.
I had to check the spline count on my spare hub to see if it was compatible. My 1967 Scout has third members from a first generation Cummins Dodge 3/4 ton. My spare hub has 30 splines.
I'm not going to make it, have grandparents coming Saturday and committed to helping a friend to fix a leak on Sunday. The only trail I've been on in the area was a nasty climb out of Kenilworth.