I want to go to 4.10s from 3.42s and i dont know what parts i need. I have a 02 gmc sierra limited edition yellow truck. Ive been looking on some web sites and they say certain diameters and i dont know what to get. i was thinking the 8.5 diameter but it also says 8.6. need help!!
02 GMC Sierra Limited Edition/with custom interior
4.8L V8
K&N cold air intake
Engine systems tune
Pacesetter LTs and ORY no cat.
QTC cutout with 3" flowmaster
yea you need a 8.5/6 10 bolt
8.5 and 8.6 same thing
they are basically the same. I truthfully dont know if they are interchangeable. It should be the same as mine and I have the 8.6, as far as what you need get a rebuild kit from summit its pretty complete for putting all new bearings in. (why have a brand new set of gears and all and crap bearings) and as far as it goes richmond gears after that. If you dont have a posi unit and still using a g80 that was stock I would look into upgrading.
06 Intimidator SS- Tuned, CAI -DD
03 Silverado- Last incarnation 13.6... RIP
Ls1, Pnp heads, Polluter camshaft, spray, 4k stall on the way
"Seize the day like you seize your noodle" - Shin Chan
^^^ +1^^^ I did my 4.10's and truetrac this past weekend.
2006 extended cab, 6.0 swap, full bolt ons SOLD
2011 ECSB, 6.2, 6 spd, 3.73, 5" lift, 33" nitto, limo tint, debadged, volant CAI, muffler delete, black bear tune 14.0 @ 98 on the 33'sSOLD
2007 TBSS AWD, cam, stall, built trans, N2OSOLD
2006 RCSB cammed LQ9, full exhaust, 3200 stall, 2-4 drop
Originally Posted by farmtruc
49 Ford F1
355 chevy / turbo 350 / 12 bolt posi / camaro subframed
i love my 4.10s!
Yup--4.10s are awesome..except for when driving 70+ mph on the freeway--you turn some pretty high RPMs...
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
eBay Motors: GM 8.6 CHEVY 10 BOLT 4.11 RING AND PINION INSTALL PKG (item 330263169396 end time Jan-15-09 04:58:54 PST) this is what you need... exactly... comes with the install package. And I can vouche for this product, I have the same thing and it works great and is very quiet.
8.5 and 8.6 have the same ring and pinion. the 8.6 locker is different than the 8.5 one. Youll need a 8.6 locker. I like My auburn Pro. And youll love the difference from the gear too.
Oh it helps a ton if you have a press.
Last edited by ff_jeff; 12-18-2008 at 12:12 AM.
thanks guys for all the replies!!!
02 GMC Sierra Limited Edition/with custom interior
4.8L V8
K&N cold air intake
Engine systems tune
Pacesetter LTs and ORY no cat.
QTC cutout with 3" flowmaster
I have gm 3.42 gears. buy mine. save money. seriously. check out my for sale thread
1951 3100
1984 C10
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