no i know a few people running 4.56's to help make up for what the motor is failing at
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
i run 4:56's with a 6 speed manual though.... they ARE NASTY! i had 3:07's in an open diff and when i pulled them and put in the richmond 4:56s and auburn carrier it was 2x the truck...
09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,
Look in the FS section. 6.0 Ls2 in there for under 2k.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4