Recent content by someoldguy

thousands... 30+ years at GM shop and then doing side jobs on the weekends... I pulled a lot of cores from the junk for him

I know he is a GM Certified Master Mechanic.. and has rebuilt thousands of transmissions...

Well Bob: I have an odd question: I was told by the master mechanic that rebuilds trannies to use Mobil 1 0-50 synthetic motor oil in my Dodge Cummins NV4500 instead of gear lube: was told it runs cooler and lubes better. So I did it.. and the transmission ran quieter and has been problem free...