2004 Silverado 1500 Regency Positraction

[damandan]

I recently purchased a 2004 Silverado 1500 Regency 2wd and it did not come with positraction. It came with the stock drivetrain for the 2004 vortec 4800 engine. It is a short bed (6 foot) with a standard cab. The truck is a 5 speed manual and whenever I encounter a slightly wet surface or slightly sandy road, the truck will overpower the passenger side rear tire. I am considering installing a positraction differential and was wondering if others have installed a differential on a similar truck and which one they would suggest. Also will the rest of my drivetrain (transmission and clutch) be able to handle a posi rearend or will they need replacement as well.

Thanks!

[jveik]

well, if you have a stock engine, i would just go to the junkyard and find a wrecked truck that has posi and low miles, like a rollover wreck or something, and pull all the crap you need and plop it into your truck... my buddy hated his open differential also in his 86 silverado with a souped up 454 lol. if he so much as overly-tapped the gas, even on dry pavement, there would automatically be a 10 foot long "one-wheel-wonder" lol...

[damandan]

Thanks, I was considering doing that. Taking a newer crashed truck and putting the whole rearend on it with a locking differential. But I am still worried will this be too much for my 4.8L Vortec engine, transmission and clutch to handle. I don't want to overpower it, with a larger heavier rearend on the truck.

[tykrz]

You wont overpower anything as the rear diff just absorbs power and transfers it to the wheels. The limited slip diff is a factory option over a regular diff and no upgrade in powertrain comes with it.
All you need is the limited slip carrier assembly and the two side bearings and then bolt the ring gear to it. Auburn gear makes a very high quality limited slip assembly. It outperforms the stock GM 10 to 1 in performance and reliability. You can install it yourself in an afternoon and won't have to re-shim the gears. They are manufactured to exact OEM tolerances so they are a direct bolt in with no setup required. I've installed many of these, checked the gear setting before and after and always no extra work required.

[damandan]

Ok, thanks for the help. I will look into that differential you recommended.

[Elbert]

Originally Posted by damandan

Ok, thanks for the help. I will look into that differential you recommended.

or get something like an eaton posi-carrier setup in your present rear differential, no question about the parts then..