Gear Vendors Overdrive unit

[houstonrealtor]

Has anyone used this on a m998? I wanted to order one, however, when I called GV they said that they don't make on for all wheel drive such as the Humvee. I have seen many people recommend them to Humvee owners on the forums so was just curious if anyone has actually used one?

 

[houstonrealtor]

Anyone??

 

[DatGuyC]

Unless you find a way to put one between the transfer case and the transmission its not going to work.

 

[tage]

You'll prolly spend as much as a 4 speed swap.
will need new drive shafts either way, and last time i priced an over drive it was almost 3 grand alone.

 

[86sa]

There was in the 80's a torque converter for turbo hydro 350 and 400 transmissions that had planetary gears inside and acted like an overdrive. I think made by B&M.

 

[houstonrealtor]

You'll prolly spend as much as a 4 speed swap.
will need new drive shafts either way, and last time i priced an over drive it was almost 3 grand alone.

Driveshafts arent a problem, I can easily have them modified. The 4l80e swap seems too complicated. Have to add a TPS, 12v signal, different shifter and I don't know for sure but probably I doubt the np218 will bolt to it (and can't seem to find an adaptor) so would have to find a different transfer case too.

There was in the 80's a torque converter for turbo hydro 350 and 400 transmissions that had planetary gears inside and acted like an overdrive. I think made by B&M.

Hmm never heard of such a thing and can't imagine how it would work seeing as there is slippage in a torque converter so not sure how it could be and higher ratio than a lockup 1:1 converter but will definitely do some research on this.

Thanks for the input.

 

[86sa]

counter rotating vanes coupled to planetary gears once spinning fast enough fluid would make vanes rotate the same direction enabling planetary gears to turn output shaft faster.