Help: 2 speed rear end.

[2wd_Sled_Puller]

Sense i need to by another rear end for the duramax i figured this time i should by a 2 speed with hopefully a 4:56 spilt and a 3:55 spilt or something like it. I wont need a transfer case and i beilve the rear end would be build a little better for pulling. Any input would be helpful

 

[Chris611]

I've always wanted to have a 2 speed rear end to try and get better mileage. Seems like if you could lug the truck down to about 18-1900 RPM at 75 MPH, you would get some good mileage. Wouldn't be able to pull much, but then you could switch back to the other range. I looked into it on another truck I had. It was 4x4, but wasn't a big deal to just use 4x4 in just one range. Would need some sort of lockout to keep me out of 4x4 in the other range I found one that seemed small enough to work, but a guy told me that you couldn't put a locker in that one. Don't know if it was true or not. Not much help to you, but at least you get a bump to the top. Let us know if you find something.

Chris

 

[duratothemax]

what happend to the stock rear end Kurt?

 

[Turbo Buick 6]

every 2 speed rear I know of wont change gear under load, you have to let off, so you wont be able to change during a pull

 

[JOHNBOY]

I am not aware of a rear you can shift under power. There could be one though.

What about going with a Rockwell F106. They have 6.32 gears so you could let the Allison do the shifting. You can get 8 6.5 lug hubs for them so you could use your wheels.

 

[dmax tim]

what class, seems like you have to go to modified to run non stock rears.

 

[dmaxfireman]

while you're at it why not two rears??

http://www.youtube.com/watch?v=YnPgd4vrHA4&feature=user

 

[malibu795]

this one is sick http://www.youtube.com/watch?v=VjPree9EHKg&feature=related

i think i know were kurt is going with this..

high for DD and the low for sled pulling.

 

[duramaximizer]

A two speed is still going to make the rear tires different from the front......unless your some 2wd puller.:rofl:

 

[MaxPowerLB7]

How do our trucks get thier reading for the speedo? Axle? Tranny? Would that maybe be an issue?

 

[whitetrash21]

this one is sick http://www.youtube.com/watch?v=VjPree9EHKg&feature=related

that video is fk'n SWEET!! i'd love to roll in that, even if it is a "ford" ......

 

[malibu795]

How do our trucks get thier reading for the speedo? Axle? Tranny? Would that maybe be an issue?

tail shaft on the tranny or t-case TCM would be the wiser of the gear change

wade.... kurt is a 2wd puller.

 

[2wd_Sled_Puller]

this one is sick http://www.youtube.com/watch?v=VjPree9EHKg&feature=related

i think i know were kurt is going with this..

high for DD and the low for sled pulling.

X2 this is my approch. sorry ive been away for a couple days. I was hoping to do something like this.