Longbed driveshafts

[steven03]

Anybody run an aluminum single piece driveshaft on a long bed? Almost to the point where i need to get a drive shaft made for my 65 long bed. turbo 5.3 ls and 4l80e will be around 550-600 hp at the wheels. Going to leave off the foot brake no transbrake yet

[cruizin01]

Originally Posted by steven03

Anybody run an aluminum single piece driveshaft on a long bed? Almost to the point where i need to get a drive shaft made for my 65 long bed. turbo 5.3 ls and 4l80e will be around 550-600 hp at the wheels. Going to leave off the foot brake no transbrake yet

I'm planning on having one made in the next couple weeks. The shop I'm using recommended a 4" alum shaft for my truck. ~71" length.

[NC_John]

Originally Posted by cruizin01

I'm planning on having one made in the next couple weeks. The shop I'm using recommended a 4" alum shaft for my truck. ~71" length.

What is your gearing? I've got a t-56 with a 4.56 rear. 28" tall rear tires. Dyno'd at 590 hp on 87 octane at the flywheel. Haven't had it on a chassis dyno yet (still reassembling the truck).

The Driveshaft Shop (driveshaftshop.com) told me last week, after they suggested it, that a one-piece aluminum driveshaft 69" long at the predicted max rpm (based on 160 mph) would not hold together. They said a carbon fiber probably wouldn't either and I needed a two piece steel. That was mid last week and I still have not heard back from them.

I might call Denny's Driveshaft this week and see what they would put together. The Driveshaft Shop has a good repuation and they are local but i'm not impressed with them right now.

[cruizin01]

Originally Posted by NC_John

What is your gearing? I've got a t-56 with a 4.56 rear. 28" tall rear tires. Dyno'd at 590 hp on 87 octane at the flywheel. Haven't had it on a chassis dyno yet (still reassembling the truck).

The Driveshaft Shop (driveshaftshop.com) told me last week, after they suggested it, that a one-piece aluminum driveshaft 69" long at the predicted max rpm (based on 160 mph) would not hold together. They said a carbon fiber probably wouldn't either and I needed a two piece steel. That was mid last week and I still have not heard back from them.

I might call Denny's Driveshaft this week and see what they would put together. The Driveshaft Shop has a good repuation and they are local but i'm not impressed with them right now.

You have a lot more going for you than i do. Mines just a little mild 402. For now I'm just sticking with the stock 3.08 gear and the 4l80e. After I posted this, I shopped around and found a reputable guy that's gonna build me a steel shaft for about half the cost of the aluminum.

[NC_John]

Originally Posted by cruizin01

You have a lot more going for you than i do. Mines just a little mild 402. For now I'm just sticking with the stock 3.08 gear and the 4l80e. After I posted this, I shopped around and found a reputable guy that's gonna build me a steel shaft for about half the cost of the aluminum.

I think right now mine is a 403 (6.0 stroker). I've got a stupid amount of money in it but happily, it shows.