Hey Guys I was wondering if anyone has added a US Gear or a Gear Vendors auxiliary tranny to their trucks? How hard is it? much help? and ease of use

I still have my gear vendors from my '99 Ford. Can't wait until GV makes the Chevy transfer case (ZF) adapter. I picked up about 1.5 MPG at 75MPH, and it made the Ford a whole lot quieter which isn't really a problem in my '06 Duramax.

Hey Guys I was wondering if anyone has added a US Gear or a Gear Vendors auxiliary tranny to their trucks? How hard is it? much help? and ease of use
What is it?
What does it do?
How much does it cost?

we have one in our 87 gmc with a 4 speed and a 6.2 it is a 17% overdrive if i remember correctly. dad had it installed but it fits between the output of the trans and the input of the transfere case so it makes your 4 speed and 8 speed forward and two in reverse. it shifts electricly and we use the clutch to aid shifting so it doesn't clunk so loud . ours has at least a hundred thousand on it with some maintainence. the shifter motor went out and some seals but we are very happy with it and have pulled loads up to 7 ton on the trailer behind this pu and not hurt this unit. lower hp rigs really make a difference with more gears to split. high hp rigs like the dmax with a six speed already I cannot see and avantage to it unless you want to give yourself more od or you can get it in a underdrive also. the under drive unit is what i would like to find for my old cummins dodge someone thought you need to go 90mph in that thing. it cost around 1500 installed back in the early 90's.

Theres one in the For Sale Forum that might be adaptable.:)