EVILGMC

iTrader: (47)

i am still running a ten bolt....girdle, eaton posi, fresh gears. no issues and more than a little bit of hp/tq

BLUES MAN

nope they came with a 4:10 gear.

Quik

iTrader: (7)

2wd SSS rear is a 373 gear 14bolt

AKlowriderZ71

iTrader: (22)

AWD SSS and Sierra Denali AWD ran 4:10 gears standard. Never have seen a 2WD SSS in this state.

Quik

iTrader: (7)

awd sss had 10bolts with 410s
2wd sss had 14bolts with 373s
also sierra denali didnt use a 14 bolt, more long the lines of a dana for the quadsteer option

james8997

my ten bolt was 260 pounds IIRC
my 14 bolt is like 390, but 70 of that is in the HUGE drums, so if you do a disk break conversion, your lookin at 330 pounds, only 70 pounds more than a 10 bolt with drum breaks, but ALOT stronger, thats just my opinion, i wanted a rear axle i know could take a beating

Quik

iTrader: (7)

14 bolt from silverado uses g80 14 bolt from tbss has g86

AKlowriderZ71

iTrader: (22)

Also, to make things even more confusing, not all Sierra Denali's were quadrasteer.

You're all over this Quik!

1Bear

iTrader: (1)

It's not too badly confusing:
'01 Sierra C3 = 10 Bolt
'02 - '04 Sierra Denali = Dana 60 Quadrasteer
'05 - '07 Classic Sierra Denali = 10 Bolt
'07 to current - Sierra Denali AWD = 10 Bolt
'07 to current - Sierra Denali 2WD = 14 Bolt

Atomic

iTrader: (42)

the 14b is much, much stronger than the 10b. i put in a 14b because even though there are guys with 10bs running tons of power, i am heavier than most at 6000+ and have 35" tires, which really take a toll on the rear end.