Breaking in Rear End

442 Harv said:

Do not over heat it. Take it for a drive, let it cool then do it again. Is it a posi? If so, do some figure eights, and also put some off the GM posi lube in it.

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Yep she's posi now and we put the posi additive in it when we filled it with rear end oil. I drove it about 5 minutes the first time, then about 5 minutes again, then about 10 minutes, then about 15 minutes, twice, then about 20 minutes. Are okay now? I got the need,...the need for speed . I wanna let them ponies out of the barn some.

Durwoods69 said:

I hear KY jelly works well although my rearend has never been broken into!

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Uh........ I'd best not comment or we will quickly get banished to CE jail :yes:

It was already driven about a hundred miles before I went to pick it up today. This morning I drove it for about 15-20 minutes, then it sat for aout an hour. Then I drove for about 45-50 minutes and sat for about 15 minutes. Then I drove for another hour and it sat for a couple hours, then I drove about 40 minutes and now it is sitting overnight.

I did not spin the tires either today, but did once after the rear end had probably 40 minutes driving on it. Another 200 miles or so and I will change the differential oil. Thanks for the input guys. It was a blast to drive it home today. I'm still smiling