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Old 01-28-2018, 07:37 PM   #15
NC_John
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Join Date: Jul 2013
Location: Rockwell, NC
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Re: Longbed driveshafts

Quote:
Originally Posted by cruizin01 View Post
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.
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