All transmissions break eventually smile

Towing in OD with 35" tires will break fifth gear ( Jason effect).

12 PSI on a good unit will hold up for a very long time.

7 PSI on a good unit will hold up just about forever.

A manual with loose bearings and a bad main shaft thrust plate will die pretty fast.

An auto will take 15+ PSI all day long and never notice.

Kevin


87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...