Originally Posted by cliffyk

Good lord you are making me feel old, I had a '69 Charger Daytona (440 with the 6-pack)--that I bought brand new...

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Let me add that I have been driving RWD vehicles for nearly 48 years (it will be 48 on Saturday, I got my first car when I was 14) and if the rear-end on a car/truck/whatever is noisy (by that I mean noisier than should be expected for the specific load range/gear design/etc) then the gears are either well-worn and due for replacement--or not adjusted properly.

We used to put sawdust in the gear oil (tranny's too) when trading in a car that had problems--works wonders...

Originally Posted by BLKSTANGER

I have been using the Shock proof for many years. It's great stuff. While I don't have it my Stang right now I have used it in a few different 4X4s and in two Harleys. You don't need to use any more friction modifier then normal. Never had a problem. Don't be scared of the pepto bismal color. It will look much worse when drained.

Originally Posted by wws2010

Thanks! It last just as long as standard oil right?