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Old 12-03-2013, 10:43 PM   #4
83GMCK2500
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Join Date: Sep 2009
Location: Western WA
Posts: 1,452
Re: Just picked up a 1996 Silverado

1500s had either an 8.5" 10 bolt rear axle or a 9.5" 14 bolt rear axle. The larger rear axle were on trucks with both the Z71 and F44. Z71 being the common offroad package that GM offered, F44 is listed as a "Heavy Chassis Package", has the larger rear axle and brakes.
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Devin

1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050

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