axle code question
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Senior User
Joined: May 2004
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axle code question
I already looked in the tech folder. My axle code is 37. its an 05 superduty diesel lariat. Does anyone know what gear ratios this is. Im hoping for 4.10s because I run a 38 inch tires. In the tech folder they list 36 which is 4.56 gears. I doubt I have 4.56 but trying to figure out what my truck came with stock. Im changing my rear diff cover and need to know if I have to add the clutch modifier. Does anyone know how much fluid I need to buy as well. Thanks.
Thread Starter
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Senior User
Joined: May 2004
Posts: 137
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thanks guys. Guess i needed to look a little harder. Sorry. Does anyone know how much fluid the rear diff holds and what fluid. Im off to the tech folder now but trying to figure out what brands people like. Only want to do this once.
