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safe to race

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Old 12-05-2006, 04:39 PM
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truck should almost be ready should. is it safe to race after the eaton posi unit and 4:10 install or should i wait and put some miles on the unit and break it in first.

Last edited by whoopassracer; 12-05-2006 at 04:49 PM.
Old 12-05-2006, 04:48 PM
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You are referring to the rear end? You are going to get different answers.
Old 12-05-2006, 04:50 PM
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sorry edited the question, but yea the rear end
Old 12-05-2006, 04:55 PM
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I was told to keep it under 50mph for the first 50 miles. Drive 15 minutes with cool down between for 500 miles. Easy for me, I work 15 minutes from home on city streets.
Others will tell you drive it like you want but the swap cost me near $1000 (4x4) so I went with the mechanics reccomendation.

What gear ratio did you go with, and a posi?
Old 12-05-2006, 06:32 PM
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going with the eaton posi and superior 4:10's gears
Old 12-14-2006, 03:25 PM
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Originally Posted by whoopassracer
going with the eaton posi and superior 4:10's gears
What did that setup end up running you cost wise?
Old 12-14-2006, 04:31 PM
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yea...you need to go thru some heat cycles to break in the gear....run it for 10-15 miles and let it cool off as many times as you can since i know you want to get on it very soon....
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