gears or cam

[Tank]

nm.. see stock tranny.. thus stock stall?

[killer71]

yea...the build sheet says it's a 3:42. I haven't done anything to the tranny!

[sloCaddy]

hey casey your guys like the 4.56s? thats what im wanting to put in my swb 2wd escky. im on 22'' and my tires 305-45 about 31 1/2 overall. ill be moving down from a 3.73. mostly curious about interstate driving and mileage increase/decrease after combineing the gears after the bigger wheels/tires. hopefully this not hijacking

[06Sierra2]

hey casey your guys like the 4.56s? thats what im wanting to put in my swb 2wd escky. im on 22'' and my tires 305-45 about 31 1/2 overall. ill be moving down from a 3.73. mostly curious about interstate driving and mileage increase/decrease after combineing the gears after the bigger wheels/tires. hopefully this not hijacking

what kinda rpms you running at like 70 or so with that gear/tire combo? I have the same size tire and wanted to do 3.90s

[sloCaddy]

2100/2200 my truck is such a turd off the line id give up lower cruising rpm's for a little take-off.

[killer71]

fyi...this is the cam i went with!
Comp Cams 212/218 LSx Cam "HIGH LIFT"

[oleshifty]

a) get a hi stall torque converter...

b) the yukons/suburbans/some 1500HDs had 4.10s stock, but you're still going to have just a g80. Ron's gearshop can get you a true-trac and a set of gears for 600 to your door. Then you just need to have them installed. Most rears out of a boneyard are atleast 500 now a days for these trucks, so you're probably better off rebuilding yours.


If not search for the RPO codes. I used to have them memorized, but can't remember now. The stick is in the glovebox. Tells gear.

[killer71]

a) get a hi stall torque converter...

b) the yukons/suburbans/some 1500HDs had 4.10s stock, but you're still going to have just a g80. Ron's gearshop can get you a true-trac and a set of gears for 600 to your door. Then you just need to have them installed. Most rears out of a boneyard are atleast 500 now a days for these trucks, so you're probably better off rebuilding yours.


If not search for the RPO codes. I used to have them memorized, but can't remember now. The stick is in the glovebox. Tells gear.

Who's this ron guy?

[o2camaross]

ronsmachiningservice.com Awesome guy and extremely helpful!!

[jbelton2]

So what did you end up going with? I have a 06 5.3 CC Silverado with 22's. Its a turd off the line and i want to jump to 4.10 or 4.30.