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Mike C · 02-07-2003, 11:42 AM

If you have the cover off, rotate the ring gear slowly. Somewhere around the edge you will see a part number, a manufacturing date, and the number of teeth on the ring gear and the number of teeth on the pinion gear. Similar to what I put above. Do the math (41/10=4.10 therefore a 4.10:1 ratio, the pinion turns 4 times for every one revolution of the ring gear.) Every gear set has these numbers. Without fail.

02-07-2003, 11:42 AM	#7
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,739	If you have the cover off, rotate the ring gear slowly. Somewhere around the edge you will see a part number, a manufacturing date, and the number of teeth on the ring gear and the number of teeth on the pinion gear. Similar to what I put above. Do the math (41/10=4.10 therefore a 4.10:1 ratio, the pinion turns 4 times for every one revolution of the ring gear.) Every gear set has these numbers. Without fail. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax