3.5" aluminum driveshaft 54" in length, who runs one?

Dragsinger · 06-17-2015, 05:39 PM

Joe, I agree about the safety factor. I think you can find many situations like you describe with your combo.

Adger Smith · 06-18-2015, 12:52 AM

Larry,
My car will not clear a 4" shaft. I run a steel Shaft 63" long 3.5 diameter. I have turned it 10,200 through the traps pretty often. Most runs were near 9600 to slow down a little & save index. I was told it wouldn't do it, but I have over 200 runs on it. No signs of stress. I know I put more gear and similar power on it than your combo...Go for it...
.

Dragsinger · 06-18-2015, 07:54 AM

Adger, I plan to run the Thunder Road date in September. Look me up.

b.guggenmos · 06-19-2015, 03:23 PM

If I remember correctly mine is 52". I absolutely love Mark Williams products and have many of their rear end components. When I called about a driveshaft a few years ago they told me I needed carbon fiber. WHAT! This is a mid 11 second bracket car. I think the charts are VERY conservative as far as critical speed ratings. I don't have room for a 4" shaft. I ended buying from a friend with a similar car a Strange 3" chrome moly shaft. No vibrations. A friend with an identical car to mine is using a 3 1/2" aluminum shaft as well and this car is at 10 flat. We both run Jerico's.

Stephen & Horace Johnson · 06-20-2015, 04:03 AM

My driveshaft is 57" , one of the longest driveshafts MW HSS ever made..they made a 3.5im diameter first and it last maybe 3 runs and it broke close to the end....so we sent it back and they requested a 4in instead....its been in the car 14yrs later and still no issues

Floyd Staggs · 06-20-2015, 07:08 AM

I run that driveshaft in my 4000 lb pickup that runs in the 10.40-10.50's. 1350 solid u-joints. Inland Empire drive shaft. Finish line rpm 6600/6650.

06-17-2015, 05:39 PM	#1
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	Re: 3.5" aluminum driveshaft 54" in length, who runs one? Joe, I agree about the safety factor. I think you can find many situations like you describe with your combo. __________________ Larry Woodfin 471W

06-18-2015, 12:52 AM	#2
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: 3.5" aluminum driveshaft 54" in length, who runs one? Larry, My car will not clear a 4" shaft. I run a steel Shaft 63" long 3.5 diameter. I have turned it 10,200 through the traps pretty often. Most runs were near 9600 to slow down a little & save index. I was told it wouldn't do it, but I have over 200 runs on it. No signs of stress. I know I put more gear and similar power on it than your combo...Go for it... . __________________ Adger Smith (Former SS)

06-18-2015, 07:54 AM	#3
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	Re: 3.5" aluminum driveshaft 54" in length, who runs one? Adger, I plan to run the Thunder Road date in September. Look me up. __________________ Larry Woodfin 471W

06-19-2015, 03:23 PM	#4
b.guggenmos Junior Member Join Date: Aug 2007 Location: Olympia, WA Posts: 68 Likes: 20 Liked 3 Times in 1 Post	Re: 3.5" aluminum driveshaft 54" in length, who runs one? If I remember correctly mine is 52". I absolutely love Mark Williams products and have many of their rear end components. When I called about a driveshaft a few years ago they told me I needed carbon fiber. WHAT! This is a mid 11 second bracket car. I think the charts are VERY conservative as far as critical speed ratings. I don't have room for a 4" shaft. I ended buying from a friend with a similar car a Strange 3" chrome moly shaft. No vibrations. A friend with an identical car to mine is using a 3 1/2" aluminum shaft as well and this car is at 10 flat. We both run Jerico's.

06-20-2015, 04:03 AM	#5
Stephen & Horace Johnson Senior Member Join Date: Jul 2007 Posts: 963 Likes: 341 Liked 161 Times in 52 Posts	Re: 3.5" aluminum driveshaft 54" in length, who runs one? My driveshaft is 57" , one of the longest driveshafts MW HSS ever made..they made a 3.5im diameter first and it last maybe 3 runs and it broke close to the end....so we sent it back and they requested a 4in instead....its been in the car 14yrs later and still no issues __________________ Stephen Johnson #2162 Horace Johnson #2167 SS/D 427 Ford Fairlane NHRA-IHRA

06-20-2015, 07:08 AM	#6
Floyd Staggs VIP Member Join Date: Feb 2006 Location: Cucamonga, CA Posts: 1,522 Likes: 148 Liked 229 Times in 99 Posts	Re: 3.5" aluminum driveshaft 54" in length, who runs one? I run that driveshaft in my 4000 lb pickup that runs in the 10.40-10.50's. 1350 solid u-joints. Inland Empire drive shaft. Finish line rpm 6600/6650. __________________ Floyd Staggs 787 SST