wondering cause i heard the 8.5 are harder to install in pickups??or are they the same crap?jegs has them listed 8.5,,then motive has them listed 8.5 8.6???????confused lol
8.5 8.6 10 ring/pinion the same??
wondering cause i heard the 8.5 are harder to install in pickups??or are they the same crap?jegs has them listed 8.5,,then motive has them listed 8.5 8.6???????confused lol
Can be used but bearings need to be swapped too.
2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s
2004 Buell XB12s
Originally Posted by LamboDoNoMo
You can put an 8.5 ring/pinion in place of the 8.6's, but I don't think you can go the other way. When we set up my gears the 8.5 had more backlash than the 8.6 did, i.e. the 8.6 is set up tighter. I would say they would be the same to set up not really harder, just a touch more time involved getting the 8.6's backlash right since it's a bit tighter.
+1 on swapping the bearings...
Last edited by 1978steven; 09-09-2009 at 08:25 PM.
2002 Silverado 2500HD LB7 CCSB LT
EFI Live by Rob at ATP, Edge CTS Insight DSP 5 control, S&B CAI, PPE boost valve, Pro Fab AIH, AirDog II 165, PPE WIF sensor delete plug, 5" stainless exhaust, Cognito braces & HD tie rods, H2's 315/70 R17 BFG's
2004 Tahoe LT
2006 Silverado Z71 LS
1971 Chevy C10
ill be going with 8.6 for a direct swap
They are the same.... and backlash settings are the same.....The difference is the carrier bearings, they make bearings that will allow a 8.5 carrier to work in a 8.6 rear end but not the other way...
.008-.012 is the settings for 8.5/8.6
You don't work with suspension or rear ends. You don't know! Didn't you screw up a Moser last week?
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
yes i effed up and ordered a narrowed axle that was 27 3/8'' instead of 27 3/4''...it was a small typo...
Just messing with you bud.
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
FWIW I would put the BL at more like 4 or 5 if using GM gears and 8.6 stuff but no one here probably would so....
got a good deal on 4.10 8.6 from rons machine shop
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