Posted by Dave [108.162.221.35] on Friday, August 02, 2019 at 15:13:23 :
....in either your crash box transmission or transfer case? (Old iron here.. not modern trucks)
What was the difference, if any?
Quieter? Cooler running? More mileage?
Or just more leaks at the seals!!
I realize this stuff don’t take away wear issues. Just wondering if it helped quiet gear boxes at all.
I really DID consider trying it to quiet mine, before I pull it once again, even though I must have some excessive worn parts making my “grrrrrring” noise in neutral.
Years ago I used royal purple synthetic in my brand new rebuilt rear chuck that was so damn hot to the touch it burned.
After replacing the conventional gear oil with that stuff I was a believer in synthetic oil. It reduced the temp so much it was unbelievable.
Though that’s the only time I ever tried it in an old truck
Follow Ups: