gear ratio

Asked by GuruW7FWV May 31, 2018 at 10:27 AM about the 2005 Dodge RAM 1500 SLT Quad Cab 4WD

Question type: Maintenance & Repair

the pinion bearing is out of my dodge and has damaged the ring and pinion so I need to replace the rear end and I cant find any tags to tell me what ratio it is could you help please

3 Answers
43,910

Hornet_2497 answered 6 years ago

Carefully count the teeth on both gears and divide the pinion number into the ring number (of teeth) and you will get a number like 3.55. That number you get will be the gear ratio.

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43,910

Hornet_2497 answered 6 years ago

Another idea is to look at the front differential for a tag. The front would be the same ratio. Except I had a 1967 Ford Bronco that had 4.10 diff in the front and 4.11 ratio in the back. Figure that one out. I'm guessing the front would pull (lead) slightly.

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