viciousknid

iTrader: (8)

I'm buying some 4.10's and a tru-trac but I don't know squat about rearends.

I haven't looked yet but I think i have a 10bolt. I'm looking online and I see gears for the following:
GM 8.2 - 10bolt
GM 7.5 - 10bolt
GM 8.5/8.6 - 10bolt

I'm assuming the first numbers are the axle diameter? How do I determine which I have?

Edit: Also, isn't there a 28 and 30 spline count on the 10 bolts? how can I determine that without tearing into it.

SpoolinChevy

I'm pretty dang sure you have the 8.5" 10 bolt rearend. But im not 100%

viciousknid

iTrader: (8)

That's what I'm thinkin too, but I don't wana be wrong.

NegraRCSB2X4auto

iTrader: (15)

913A481 Locker part #

NegraRCSB2X4auto

iTrader: (15)

you should have 8.6 30 spline

NegraRCSB2X4auto

iTrader: (15)

I've got a yukon 8.6 master rebuild kit all I used was a little of the paste and a small shim. I'll let you have it for 115 shipped. you'll need it for the gear install.

viciousknid

iTrader: (8)

that's a lot of shipping for an item your letting me HAVE.
Wait until I get everything else. I'll talk to my installer and see what he's got, If I need it I'll holler at ya to see if you still have it.

viciousknid

iTrader: (8)

It's a 10 bolt. now is there any sure fire way to determine the spline count and axle diameter?
aside from the obvious.

NegraRCSB2X4auto

iTrader: (15)

if it's an 03 and up and you have 10 bolts on your differential cover. then it's a 8.625 30 spline.

viciousknid

iTrader: (8)

Just ordered 4.10's Truetrac and Master kit package for $584.99.