Zach495 Posted December 13, 2009 Report Share Posted December 13, 2009 Does anyone have some instructions/how to do a rebuild on the front differentials? I have an 04 SS that I believe has chewed up some bearings and I would like like to figure out what parts/kit I would need for the rebuild and also looking for any advise of what or what not to do. Thanks Quote Link to comment Share on other sites More sharing options...
SSplaytoy Posted December 14, 2009 Report Share Posted December 14, 2009 Does anyone have some instructions/how to do a rebuild on the front differentials? I have an 04 SS that I believe has chewed up some bearings and I would like like to figure out what parts/kit I would need for the rebuild and also looking for any advise of what or what not to do. Thanks Do you mean totally rebuild it or just fix what is tore up? Have you pulled the cover and found what is messed up? That's how you will know what you need. I don't think there is instructions on rebuilding it, just torque and free-play specs. Just remember to replace the races when you do the bearings and the caps are side specific. Quote Link to comment Share on other sites More sharing options...
benjaminh2 Posted December 14, 2009 Report Share Posted December 14, 2009 there is no "kit" persay, however its all available through your local dealer. at minimum you will need: -both pinion bearings -both carrier bearings (they are not side specific) -pinion seal -pinion nut (its a lock nut, not reuseable) -both axle seals -2 lock tabs ( these tabs are what lock the adjusters in place so you dont loose backlash and carrier preload) when your ready to do it, pm me, i'll give you my number and i can walk you through carrier setup over the phone. i've rebuilt close to 100 of these diffs. Quote Link to comment Share on other sites More sharing options...
70chevy03ss Posted December 14, 2009 Report Share Posted December 14, 2009 there is no "kit" persay, however its all available through your local dealer. at minimum you will need:-both pinion bearings -both carrier bearings (they are not side specific) -pinion seal -pinion nut (its a lock nut, not reuseable) -both axle seals -2 lock tabs ( these tabs are what lock the adjusters in place so you dont loose backlash and carrier preload) when your ready to do it, pm me, i'll give you my number and i can walk you through carrier setup over the phone. i've rebuilt close to 100 of these diffs. And he does great work!!!! Quote Link to comment Share on other sites More sharing options...
Zach495 Posted December 15, 2009 Author Report Share Posted December 15, 2009 Thanks for the input guys. I dont think I need a complete rebuild, it just sounds like a bearing is going bad, but it's still driving. GM, are you interested in doing the rebuild if I shipped it to you? It's not something that needs to be done ASAP, but would be nice to have it back within a month. Quote Link to comment Share on other sites More sharing options...
Zach495 Posted December 15, 2009 Author Report Share Posted December 15, 2009 GM, actually, it doesnt look like you're too far from me, less than 3 hours. If you're interested, perhaps I can drive it to you for the diff rebuild and 2/3 drop? It looks like yours is sitting nicely. Quote Link to comment Share on other sites More sharing options...
benjaminh2 Posted December 15, 2009 Report Share Posted December 15, 2009 ya that works. pm me for more info. Quote Link to comment Share on other sites More sharing options...
4.8t Posted February 16, 2010 Report Share Posted February 16, 2010 i just bought a master ring and pinion install kit from 4wheelparts for $62 to do mine. gmperformanceguy, are the stock specs for back lash and what not good or are there better clearances to use? i'm about to set mine up soon as i can get a inchlb torque wrench to set my pinion. i just want to make sure the factory settings are good. i can tell already that the way it came from the factory it was off. it seems a little loose. Quote Link to comment Share on other sites More sharing options...
Sinister C3 Posted February 17, 2010 Report Share Posted February 17, 2010 I need to rebuild mine too. What are the torques and play specs? Quote Link to comment Share on other sites More sharing options...
hawks Posted February 17, 2010 Report Share Posted February 17, 2010 Document ID# 855951 2004 Chevrolet Chevy K Silverado - 4WD 2GCEK19N541386137 -------------------------------------------------------------------------------- Axle Preload and Backlash Specifications Application Specification Metric English Backlash 0.08-0.25 mm 0.003-0.010 in Backlash (Preferred) 0.13-0.18 mm 0.005-0.007 in Pinion Bearing Preload, New Bearings 1.7-3.4 N·m 15-30 lb in Pinion Bearing Preload, Used Bearings 1.1-2.3 N·m 10-20 lb in Pinion and Differential Case Bearing Preload, New Bearings 3.4-6.2 N·m 30-55 lb in Pinion and Differential Case Bearing Preload, Used Bearings 2.8-5.1 N·m 25-45 lb in -------------------------------------------------------------------------------- Document ID# 855951 2004 Chevrolet Chevy K Silverado - 4WD 2GCEK19N541386137 Quote Link to comment Share on other sites More sharing options...
hawks Posted February 17, 2010 Report Share Posted February 17, 2010 Document ID# 879646 2004 Chevrolet Chevy K Silverado - 4WD 2GCEK19N541386137 -------------------------------------------------------------------------------- Fastener Tightening Specifications Application Specification Metric English Differential Adjuster Lock Nut Bolt 20 N·m 15 lb ft Differential Carrier Assembly Case Bolts 47 N·m 35 lb ft Differential Carrier Bracket to Frame Nuts 90 N·m 67 lb ft Differential Carrier Assembly Mounting Bolts and Nuts 100 N·m 75 lb ft Front Differential Carrier Shield Bolts 20 N·m 15 lb ft Front Drive Axle Actuator 20 N·m 15 lb ft Inner Shaft Housing to Bracket Nuts 100 N·m 75 lb ft Inner Shaft Housing to Differential Carrier Assembly Bolts 40 N·m 30 lb ft Pinion Shaft Lock Bolt, 9.25" axle 53 N·m 39 lb ft Plug, Drain and Fill 33 N·m 24 lb ft Ring Gear Bolts, 8.25" Axle 120 N·m 89 lb ft Ring Gear Bolts, 9.25" Axle 138 N·m 102 lb ft Stabilizer Link Nut 18 N·m 13 lb ft Vent Hose Connector 28 N·m 21 lb ft Wheel Drive Shaft Inboard Flange Bolts 79 N·m 58 lb ft Wheel Drive Shaft to Front Hub Nut 240 N·m 177 lb ft Yoke Retainer Bolts 25 N·m 18 lb ft -------------------------------------------------------------------------------- Document ID# 879646 2004 Chevrolet Chevy K Silverado - 4WD 2GCEK19N541386137 Quote Link to comment Share on other sites More sharing options...
Sinister C3 Posted February 17, 2010 Report Share Posted February 17, 2010 Thanks Hawkman Quote Link to comment Share on other sites More sharing options...
4.8t Posted February 27, 2010 Report Share Posted February 27, 2010 looks like my stock setup was out a bit. about .011. i got it to about .007 now. but i need to check the drag with the diff installed. i got the pinion right at 29inlbs. the pattern looks good but its not in the middle of the ring gear teeth. it is one way but not the other. the pattern covers most the tooth but its closer to one end then the other. if i post a pic can you guys tell me what ya think. its funning cause rear ends seem to be easier than the front. Quote Link to comment Share on other sites More sharing options...
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