1 Fast SS Posted January 9, 2008 Report Share Posted January 9, 2008 There are many things that I want to do to my truck, but one the thing that's been on my mind lately is installing a 4:10 axle. The dealer can do it for about $600. I have the 06' SSS and it has great lowend TQ, but I want to get off the line faster. The thing I would like to know from you guys, are there pro's and con's to installing this? Or maybe a different set-up, like a Eaton posi or something like that. I don't know that much about gearing, so I would need some schooling from you guys of what would be the best set up. I plan on putting a cam and Procharger later, and maybe some heads. First off, let me say that I'm NOT a daily driver, so the extra gas mileage doesn't bother me. What I'm concerned about, is losing any type of topend at the track or on the street. I know that I would have to re-tune for this after the dealer reflashes the PCM, but would there be any other down falls to this install? Thanks Terry Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted January 9, 2008 Report Share Posted January 9, 2008 Why would the dealer reflash your PCM? Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted January 9, 2008 Report Share Posted January 9, 2008 Terry going to a 4.10 will definitely get you off the line better, but it will hurt your top end towards the end of the strip..........I personallly plan on staying with a 3.73. I would definitely consider a different locker though, we all know how wonderful the current G80 can be. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted January 9, 2008 Report Share Posted January 9, 2008 those 4.10's will put a smile on your face for sure, i say go for it Quote Link to comment Share on other sites More sharing options...
Vortec MAX Posted January 9, 2008 Report Share Posted January 9, 2008 Why would the dealer reflash your PCM? To correct the speedo error. Mike Quote Link to comment Share on other sites More sharing options...
Badkarma Posted January 9, 2008 Report Share Posted January 9, 2008 Ive been wanting 4:10's and a tru track for a while now.. Quote Link to comment Share on other sites More sharing options...
shakesvho Posted January 9, 2008 Report Share Posted January 9, 2008 Terry going to a 4.10 will definitely get you off the line better, but it will hurt your top end towards the end of the strip..........I personallly plan on staying with a 3.73. I would definitely consider a different locker though, we all know how wonderful the current G80 can be. Quote Link to comment Share on other sites More sharing options...
rivierakid55 Posted January 10, 2008 Report Share Posted January 10, 2008 definately ditch the stock G80. i went with a detroit locker and its pretty noisy turning on the street but there is zero slippage for sure. combined with the 4.56 gears its somewhat undriveable on street tires but i like the powerband it puts me in combined with my torque converter. and like you i dont drive mine daily so gas mileage isnt a big concern maybe look into a truetrac unit for the rear as well. and ta performance makes a nice 14 bolt differential cover to go with it terry for about 200 bucks. i think all told im into mine for right around a grand installed. and dan is right about getting off the line but i would question the top end theory. i trap a lot higher rpms in 3rd gear than a similar truck with 3.73s which helps your top end mph. Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted January 10, 2008 Report Share Posted January 10, 2008 and dan is right about getting off the line but i would question the top end theory. i trap a lot higher rpms in 3rd gear than a similar truck with 3.73s which helps your top end mph. We're gonna find out how mine does with the 3.73s when I get to the track soon, my trans parts should be here by the end of the week. Quote Link to comment Share on other sites More sharing options...
Badkarma Posted January 10, 2008 Report Share Posted January 10, 2008 Dammit, now Im really getting the itch to go through and redo there diff and gears.... grrr need to water my money tree Quote Link to comment Share on other sites More sharing options...
1 Fast SS Posted January 12, 2008 Author Report Share Posted January 12, 2008 If it gets me off the line quicker, and it hurts my topend, will that still even everything out over all? Or should I just stick with the cam install first? Terry Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted January 12, 2008 Report Share Posted January 12, 2008 If it gets me off the line quicker, and it hurts my topend, will that still even everything out over all? Or should I just stick with the cam install first?Terry Terry I would do the cam first, you will get more bang for your buck, you can always change gears later. Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted January 12, 2008 Report Share Posted January 12, 2008 I agree with dan cam first Quote Link to comment Share on other sites More sharing options...
1 Fast SS Posted January 13, 2008 Author Report Share Posted January 13, 2008 Then, the cam it is!! Then comes the Procharger D1. If that doesn't make me happy with some added HP & TQ, then I'll change the gears. Terry Quote Link to comment Share on other sites More sharing options...
zo6freak Posted January 15, 2008 Report Share Posted January 15, 2008 Then, the cam it is!! Then comes the Procharger D1. If that doesn't make me happy with some added HP & TQ, then I'll change the gears.Terry SOunds good. I got 4.10's installed a few months ago on my 5.3 and i noticed a nice gain over my 3.73's. So much that i can break my 33" tires on dry pavement. I can give you a number for Adams Driveline out in henderson. they did my Motive 4.10s and cleaned out my G80 for 250 installed which is a smokin deal. Also, pm me with your number again i lost it lol. Quote Link to comment Share on other sites More sharing options...
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