Gear Vendor Overdrive

[78Chev]

So a friend of mine recently bought a k30 dually with the diesel/turbo 400, np205. but what was interesting was 2 and yes 2 gear vendor overdrive splitters attached. anyone know about these or how much they can increase mileage? ill get pics if i can.

 

[blazinzuk]

RPM reduction and more gears is how they help mileage.

You get extra gears when up shifting and then a final overdrive vs the 1 : 1 of a turbo 400, 2 seems excessive though

 

[rdn2blazer]

Go to thiere site. ALl the info you need. They do work great. I know several guys running them in tow rigs. My buddy has one in his 66' Chevelle with a manual 4 speed behind a 540in Merlin block with Dart Alumin heads cranking out 625 hp and 685 ft lbs of torque.

 

[78Chev]

ya thing is, friend bought the rig for 2k, has a dana 60 front, 14b dually rear. custom flatbed, is a CC. and 6.2 diesel. so i will try to convice him to let me have 1 of the 2 GV overdrives. would be nice to get better milage in my truck so i can justify my wheelin trips

 

[rdn2blazer]

HELL YEAH! If he will see you one for a smokin deal that would be awesome. There like 1500 or 1800 bucks then you have to buy the adaptor for your vehicle.

 

[78Chev]

have you seen them where there are 2 in it end to end after the transfer case? that was the strange part to me. 1 is normal. 2?

 

[Babaganoosh]

In a 2wd 1ton extended cab duelie with a 454 th400 I was getting 15mpg in stop and go traffic with one gear splitting.

 

[Hogback Fabrication]

In that truck, two underdrive units would be completely useless. If it really has two, getting rid of one would definitely be a good idea.

 

[sweetk30]

the adaptors can be long and look like 2 .

and you better have a adaptor to get a new one from them. thay do a swap out deal i have been told . vary weired on there sales of the broduct.