GMC Sierra 1500 Differential Replacement

28 Spline; 1.20 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; 7.5 in./7.625 in.

30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; Rear 8.5 in./8.6 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

30 Spline; 1.50 in. Axle Shaft Diameter; Rear 10.5 in.; All Ratios Replaces Conventional Diff. Internals In Certain 1973 Thru Present GM Axles~If Installed In GM Axle Equiped w/Optional Eaton Diff. Will Require~New Gear Support Case Assembly GM PN[6258336 Or 6258340] Depending On Ratio

28 Spline; 1.20 in. Axle Shaft Diameter; 3.23 And Up Ring Gear Pinion Ratio; Rear 7.5 in./7.625 in./8.5 in./8.6 in.; Rear 9.5 in.

28 Spline; 1.20 in. Axle Shaft Diameter; Fits All Gear Ratios; Rear 8 in.

33 Spline; 1.37 in. Axle Shaft Diameter; 9.5 in.

30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Rng Gear Pin. Rat;Manual Locking Hubs Are Recomnd For Some Appl.; 8.5 in./8.6 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

8.6 in. 10 Bolt; 30 Spline; 2.73 And Up GM 8.6 in.; 30 Spline; 2.73 And Up~Yukon Dura Grip Positraction / Limited Slip; GM 8.5 & 8.6 in. Rear; 30 Spline; 2.73 And Up; 1.781 in. Bearing Journal

GM 10.5 in.; 14 Bolt; 30 Spline; 4.10 And Down Ring Gear Pinion Ratio; 1.50 in. Axle Shaft Diameter

9.5 in. 14 Bolt; 33 Spline Axles GM 9.5 in.; 14 bolt cover; 33 Spline Axles~Yukon Dura Grip Positraction; GM 9.5 in. Rear; 14 bolt cover; 33 Spline

33 Spline; 12 Bolt Yukon Dura Grip Positraction; GM 9.5 in. & GM 9.76 in. Rear; w/ 12 bolt cover; 3.42 & Up Gear Ratio

30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; Rear 8.5 in.; Rear 8.6 in. Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

2.73 Gear Ratio And Up GM 8.6 in.; 2.73 Gear Ratio And Up~GM 8.6 in.; Yukon Grizzly Locker; 2.73 Gear Ratio And Up; 1.78 in. Bearing Journals;

33 Spline; 1.37 in. Axle Shaft Diameter; Rear 9.5 in.; All Ratios

Competition Only; 35 Spline Axles; 4.10 And Down Dana 60; Quadrasteer; Competition Only; 35 Spline Axles; 4.10 And Down

Dana 60/Reverse; 35 Spline; 4.10 Ratio And Down Dana 60; Quadrasteer; 35 Spline; 4.10 Ratio And Down

30 Spline; 1.32 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in./8.6 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

30 Spline; 1.55 in. Axle Shaft Diameter; Rear 11.5 in.; All Ratios

Open To Lock; 35 Spline; 4.56 Gear Ratio Up Dana 60

Selectable Full Locker w/Limited Slip; For Use w/2.73-Up Ratio; 30 Spline 8.6 in. (10 Bolt)

Open To Lock; 30 Spline; 4.56 Gear Ratio Up Dana 60

Open To Lock; 35 Spline; 4.10 Gear Ratio Down Dana 60

Open To Lock; 30 Spline; 4.10 Gear Ratio Down Dana 60