Quote:
Originally Posted by NROTOXIN
This bulletin is only about draining the Initial (special) oil. Are you suggesting that W-Lewis has this Initial fill oil as noted in the 1963 bulletin? |
In the Jag service docs, they call for initial changes for Powr-Lok diffs, but not for non Powr-Lok diffs, around the five to seven thousand mark. For non Powr-Lok diffs, they call for a change out at the 500 mile mark. GM would also call for the same change out at the 5 to 7.5 mark for LSD rears and then never again. But if you did not have the LSD in it, then you never had to change it at all. If he has a Powr-Lok in there, now's the perfect time to change it out and then probably never change it again in his lifetime. If it's a non-Powr-Lok, then just leave it as is. Or, if he does manage to put 30k miles on it, then change it as per CW's recommendation. But if he's only put 5k in 20 years then I doubt he'll hit that mark. The easiest way for him to check whether he has a PL in there is to just nail the throttle and look at the marks. That's easier than jacking the car up and manually turning a wheel. Make sense?
