crf250rider Posted February 10, 2009 Report Share Posted February 10, 2009 I was just wondering if anybody knew what size rear end and gears come stock for an 05 silverado with a 4.8 in it? Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted February 10, 2009 Report Share Posted February 10, 2009 It should be a 10-bolt, not sure what ratio though....my guess would be somewhere between 3.11 and 3.43........ Quote Link to comment Share on other sites More sharing options...
afsp1211 Posted February 10, 2009 Report Share Posted February 10, 2009 I was just wondering if anybody knew what size rear end and gears come stock for an 05 silverado with a 4.8 in it? Best bet is to check the glove box for codes. If you see Code GU6 it's 3.42 Quote Link to comment Share on other sites More sharing options...
crf250rider Posted February 10, 2009 Author Report Share Posted February 10, 2009 ok ill have to check the glove box for codes. Quote Link to comment Share on other sites More sharing options...
zippy Posted February 11, 2009 Report Share Posted February 11, 2009 I agree, should be an 8.6" 10 bolt rear. Likely a 3.23 gear, but possibly could be a 3.73. 3.23 gear is a GU5 and 3.73 is a GT4. If it has a G80, it also has a locking rear differential. Quote Link to comment Share on other sites More sharing options...
Jesse 05ss Posted February 11, 2009 Report Share Posted February 11, 2009 All the all wheel drive SSS came stock with a 4.10 rear end and a rear locker Quote Link to comment Share on other sites More sharing options...
zippy Posted February 13, 2009 Report Share Posted February 13, 2009 All the all wheel drive SSS came stock with a 4.10 rear end and a rear locker That is true, but it doesn't help his question at all. Quote Link to comment Share on other sites More sharing options...
sierra ss Posted February 19, 2009 Report Share Posted February 19, 2009 Is it a work truck model? My 06 that i used to have was and had on the window sticker that it had a HD locking rear diff with 3.42's. Quote Link to comment Share on other sites More sharing options...
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