I have been doing some more mods to my RCSB 03 Z71. Now I want to swap out the 3.73's with 4.10's.
Can I just swap out a complete rear from a 4.10 truck (junkyard) or do I need to do the front diff too?
I am trying to figure out the cheapest way to do it so the wife doesn't find out
im pretty sure you gota do both.
yea u got to do both unless your getting rid of the 4wd
different gear ratios + 4wd = exploding transfer case
blown transmissions are about as useful as 97% of the guys on this forum
That is what I figured.
My truck has gotten pretty quick and it sounds great now with the exh. and intake done. My main complaint is that I can't even break the tires loose on dry pavement. How else can I get some extra snap off the line without spending too much?
My power mods:
FIPK Intake
3" Cat back
e-fans
hypertech pp3 @93 octane
First thing you do is get rid of the hypercrap and get a real tune.
2005 Chevy CC, Airaid cai, Gibson cat back, Nelson tune, corvette servo, Circle D 3000 stall, Circle-D built tranny,Speed Daddy headers
+1 on getting a custom tune
what size tires are you running? that'll make a difference in what gears will be best.
ps - just as personal advise - keeping secrets from the wife ain't the best idea... she will find out.
00 FRC - just top end, exhaust, and a hot-air intake
99 Sierra - 5.3 / 5spd
↓ click the pic for the build ↓
If you have manual fans, DITCH THEM for electrics. Best thing i've done on mine.
UD pulley puts more at wheels.
Custom tune
After that, things start costin a lot more $$$
blown transmissions are about as useful as 97% of the guys on this forum
Or never put it in 4WDOriginally Posted by STUNNA
Nope, see above.
stock tire size, whats wrong with the hypertech?
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