4:88 gears needed once I get tuner?

[gahanna-6.4]

Originally Posted by bigcountry61

..... wifey does not agree wit my addiction, everytime I add a mod I have to get her something so this is retarded expensive

Welcome to a "Happy" marriage

[Stroken49s]

Axle Ratio - B&C Offroad

that ratio would be correct if you are wanting to get back around a stock 3.73

[Pahrump]

I am curious as to how changing gear would effect my mileage?


Right now I have 3.73's with 37's....no its not like stock but with the tuning, and exhaust mods, I can spin the tires on pavement so I am not sure I am "lacking" bottom end...yeah...gears would get me more but if its going to kill my mileage then I dont need more, I have plenty of power on tap.

However I have installed gears in a 1/2 ton that I ran 37's on...it was 3.55 stock, I went up to around 4.50's or so I think, and I actually got 1-2mpg better mileage.

[dlonno]

Originally Posted by bigcountry61

I was gonna get 4:88 gears but I am planing on getting the spartan 200 and 250hp tune very soon ( whenever that may be) will I still need to do the gears?

any advantages of tuner and 4:88 or wast of cash?

What size tires do you have? 4.88's are huge ring gears. I wouldn't go that big unless you got 40's or bigger. 38's go with 4.56 or even 4.30.

[bigcountry61]

I have 38"s but may go ahead and get 40"s

[Raul@Stealth Automotive]

Originally Posted by Pahrump

I am curious as to how changing gear would effect my mileage?


Right now I have 3.73's with 37's....no its not like stock but with the tuning, and exhaust mods, I can spin the tires on pavement so I am not sure I am "lacking" bottom end...yeah...gears would get me more but if its going to kill my mileage then I dont need more, I have plenty of power on tap.

However I have installed gears in a 1/2 ton that I ran 37's on...it was 3.55 stock, I went up to around 4.50's or so I think, and I actually got 1-2mpg better mileage.

it will effect your millage because your RPM's will go up higher... lets say your at 1800rpm at 70mph... when you change gears you will go up to around 2100ish....

higher RPM's on highway means less MPG.

now on city driving you might gain some since its taking less engine power to turn the tires. I saw a jump on my city driving but a decrease in my highway unless i can keep it under 2krpms which right now is around 67mph at 2krpm

its a good idea to regear for the mere fact that its taking off excess stress on your drivetrain. i wouldn't do it for a reason to get mpg back but as a preventative measure to make your stock drivetrain components last longer

[TANK'S 250]

I have an 05 PSD, manual tranny, DR 4.5" lift,...41" Iroks and 4.56 gears....it's perfect for me.

[bigcountry61]

tank how u like those Irok 41"s ???

[TANK'S 250]

they make me hard

[Pahrump]

Originally Posted by TANK'S 250

they make me hard

LMAO!!!!!!!!!!