Bought a pete 378 and wanted to check the status of the rears. Also want to find the gear ratio so I can also change the seal. I can't find a placard on it anywhere. How do I find the gearing?
How Do I Find Gear Ratio?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Hilltop Hustler, May 5, 2025.
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Pressure wash that rear end, there might be a tag on it - aluminum.
Check VIN with Pete, find out what it came out with originally , unless it's been changed.
For a start.
Then thee's the tire size/RPM etc mathematical stuff . . .
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