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Old 05-17-2013, 12:00 PM   #1
40's rock
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Join Date: Aug 2012
Location: Dallas
Posts: 89
Default Rear end gearing

Since my chasis was built in 1984, 55 MPH speed limit, I top out at 72. I'm considering a rear end gear change to help my top end and mpg.
400 cummins with a 9 speed eaton...pulls like a banshee and with my 15K of trailer and toys, I can motor past people uphill...till I run out of gear at 2100 rpm / 70-72 mph.
Thoughts? Am I on the right track? Anyone have any gear change experience?
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