Originally Posted by 1mean340
Originally Posted by CSK
From my drive shaft debacle, local shop, Strange, & now a Mark Williams , the MW was the ONLY place I found that could spin the shaft at a real world HIGH rpm, not the 500 max rpm that all the other use ,the MW solved my problem on my r46rh/A518 trans in my 68 Charger.


He's definitely on the top of my list of people to contact about building this DS. Also wanted to reach out to the driveshaft shop and PST since they do a lot of Hellcat stuff.

Which brings me to another weird thing. PST is one of the more widely used shafts for the Hellcats and they even offer a billet flange adapter (looks like the sonnax one or one of the same design) for use with a spicer U joint as an upgrade. If the yoke adapter was the problem by itself it doesn't seem to be an issue with factory hellcat cars if it's being offered as an upgrade by a pretty reputable driveshaft shop.


I'll let you guys know what MW, PST and the driveshaft shop says when I hear back.


Mark Williams 4" Aluminum with 1350's in both my cars. Best out there, and smoothest running.

I put a 5" diameter Aluminum shaft with 1480 or some huge u-joints in my truck with 36's on it from a shop in Texas. It's pretty long too. He told me to keep it under 135mph to avoid exceeding Critical Speed. I don't trust the tires much over 100mph, but every now and then I got to let the 3L Whipple 427LS loose to pass idiots that won't get over in the passing lanes.

http://driveshaftspecialist.com/Truckhtml/Chevy-GMC.html

Snow Truck Sunset.jpg
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)