[cal30_sniper]

Originally Posted by SuburbanStevie

First Off. Welcome to this wonderful board! We are a cool bunch of gearheads.

I read your plans about installing a GearVendor Overdrive. I've got one, it is great. But the cost$$$ is somewhat over the top. And the one complaint I have is they generally remove your two driveshafts, and install a single long drive shaft. this is all fine and good, but now when I hit about 70mph, I start having a severe vibration. I believe it is that the long drive shaft is hitting it's "critical speed", or begins opperating within one of its bending frequencies. NOT a good thing. doesn't really bother me as I mostly use the vehicle for towing now days, and never tow close to 70mph.

We can chat more about it.

Steve

I think if I watch my purchases, I can get one for close to $1500, which isn't too bad really. Should pay for itself in about 30-40k miles (a year or two as much as I drive on the highway). I've already got a line on a 2-piece shortened driveshaft that came out of a TH400 burban with a gear vendors, so that should take care of that problem.

Also, you have to figure in the reduced wear and tear on the engine with a gear vendors. Not only is it getting you some gas mileage, it's also keeping the revs down on your engine at a steady highway cruise. That makes a big difference in how many miles you can get out of components without having problems.

Anybody have recommendations on a torque converter for towing and increased gas mileage? I was looking at a 1500 rpm stall TCI Towing torque converter, does anyone have experience with it?

-cal30sniper