longgunreaper
New member
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- Jerome, Idaho
ive found a M54A2, thinking of bringing it home doing my homework. I'm a diesel engine tech by trade and "thinking" the 80/90 gear oil is outdated, I actually believe theres no place for it in this day and age. I would convert the truck to 75/90 synthetic, the tranny to syn. 50W,has anyone done it? any problems?