Aluminum driveshaft info?

68converted

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Nov 19, 2003
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Colorado
Has anyone used the aluminum driveshaft from a Crown Vic? It seems pretty stout, much more so than the Aerostar's, but the driveshaft shop wants to sell me a custom made one. Of course. Do you think it will hold up? I think I should be sending about 290-300 hp to the rear wheels. Anyone have any input... $80 to shorten or $300 for new... I don't know if the amount of power warrants a heavier duty one. :shrug:
 
Driveshaft

I think you should be alright with stock, shortened if necessary, driveshaft. They are overdesigned , if not they would be known for failure. If you are using slicks and dragracing, maybe not.
 
How thick is the crown vics? The one I got from street or track is 3" and I think they are good up to 450hp with slicks, but I'm not 100% on that. I thought there was something out there that had like a 3 1/2 incher under it that would work.
 
Thanks 10secgoal. I thought about that one as well, but I already got this one. The one I got came out of a wrecked police cruiser, so I am sure it will hold up now that I think about it. I suppose it is always good to pose the question anyway. Don't like to recreate problems that someone else has already had to fix. Edit: I measured the dia. and it is 3.5"s. Should be fine.