I think I will get the most use from a ECSB, but I want a SCSB because it is a little quicker in the 1/4. What is the average stock time for a 04 5.3 ECSB vs. a SCSB truck. thanks... also, one last question.. what is the code for the 3.73 rear in these trucks. or maybe I should say what rear do you recommend I get in the truck. thanks again...

 

come on... anyone have an answer..... I also got a thing in the mail thru my GM card called truckfest bonus... I can get 2000 bucks total cash bonus and 0% APR for 60 months... I will getting the truck in few weeks... I looked at about 50 trucks within like 100 miles and none of which I liked... i want a Arrival blue 5.3 RCSB all the blue RCSB where Z71, I want 2WD.

 

G80: Locking, Rear Axle
GH0: 3.54:1 Rear Axle Ratio
GMC: Pontiac East Assembly
GT4: 3.73:1 Rear Axle Ratio
GT5: 4.10:1 Rear Axle Ratio
GTY: Wide Track Rear Axle
GU4: 3.08:1 Rear Axle Ratio
GU6: 3.42:1 Rear Axle Ratio


copied from fast4.8's list of RPO codes

 

Get the extended cab Z71

 

I just ordered a black Chev lt, full load, be here in 3 weeks, i'll put some 18"wheels/ tires, catback,lt headers, cold air box, tuned pcm and hotchkis bars on it and I've got a runner, if you have lot's of dough put a radix on it.
It's not guite as quick as a short wheel base but a little bit more useful.

enjoy David

 

My 04 RCSB 5.3 2WD with 3.73 pos. ran 14.97 bone stock.The ECSB 2WD's run about .5 slower stock.