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Thread: S10 rear axel gears
10-30-2010, 02:54 PM #1
S10 rear axel gears
I have a 99 reg cab its 2.2l truck. This truck has the auto Trans still in it. I donít have the first idea what gear is in the rear end. I know my 5 speed truck has 4.10s in it. Does any one know how to tell the rear gear size for my truck or where I can find out?? Any info welcome thanks.
10-30-2010, 03:03 PM #2
If you know it still has the original factory gear ratio, then look in your RPO code list in the glove box, then look up those codes in one of the many RPO code lists available online (there's one in this forum somewhere, even). If memory serves, the gear ratio codes often start with a "G".
If someone has changed the gear ratio after the fact, you'll have to count rotations or teeth on the gear.'98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
'92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
"My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World
10-30-2010, 03:10 PM #3
I changed the interior carpet dash and seats from tan to gray. I used the dash out of my x cab race truck that has a 4.10 gear stock. No help there thanks any ideas
10-30-2010, 04:58 PM #4
do the rotation method, it'll get u in the ballpark area. jack up the rear end, support on jackstands, have somebody watch the passenger side wheel and count how many rotations the drive shaft makes for one full revolution of the wheel. ex: drive shaft turns 3 and 3/4 turns for one wheel revolution, basically a 3.73:1.
10-31-2010, 07:43 PM #5Still Loyal to GM after all these years...:shocked:
2006 Impala LT 3.5L
2005 Silverado WT small cab/longbed 4x4 4.3L V6
1999 Grand Am 3.4L in TX w/ our youngest
1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
1988 S-10 small cab/longbed HT3.4L Crate Engine
1970 Nova 250 I-6, factory 3 sp floor shifter.
1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.
11-01-2010, 10:24 AM #6
I puled the diff cover. To get the numbers off the ring gear. They say its a 4.11
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