Which Drive are you running?
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 816
Likes: 107
Which Drive are you running?
While I have the rear end out of the car because I broke an inner axle I noticed my U-joints on the drive shaft were real stiff so time to change them. I was thinking of going with a Ft. Wayne unit because I bought their 3" HD half shafts and I was impressed with the quality!
I see they have 2 drive shafts listed....A 2" with .120" wall tubing and a 2.5" with .085" tubing.
Just curious to what you guys are running, this is a 4 speed car so it plays hell on all the drive line parts. I have not broke a u-joint or drive shaft yet but I have managed to break everything else in the rear.
Any of you guys running either one of these units? On a manual car or an auto that leaves hard with sticky tires?
Thanks
I see they have 2 drive shafts listed....A 2" with .120" wall tubing and a 2.5" with .085" tubing.
Just curious to what you guys are running, this is a 4 speed car so it plays hell on all the drive line parts. I have not broke a u-joint or drive shaft yet but I have managed to break everything else in the rear.
Any of you guys running either one of these units? On a manual car or an auto that leaves hard with sticky tires?
Thanks
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I have been running Ft Wayne half shaffts for a number of years now with no issues. I have been putting around 500HP through them for quite a while. Now I'm not launching at 5000 rpm on slicks but I do run a sticky street tire and bang hard shifts and launch pretty hard. So far the yhave held up. I am running a custom driveshaft built by a local guy who said it will hold 750 HP no problem launched on slicks. Good enough for me. I did not question what wall thickness it was but it is 2 inch diameter. All solids ujoints
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 816
Likes: 107
Ive not heard of anyone snapping a drive shaft, have you guys? The stock 2" unit is tiny but I guess its pretty strong. I may just go ahead and order the 2.5" unit, it has a thinner wall tubing but I guess it can use that since its .5" bigger diameter.
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
FWIW, assuming my maths are correct, the ~8% greater total cross sectional area (not to be confused with the difference in thickness itself) had by the 2" x .120" tube is somewhat more than offset by the ~20% reduction of mechanical advantage acting against the 2.5" x .085" tube. So, the 2.5" tube should prove stronger, tho it would also have greater inertia. And, yes, I seem to have too much time on my hands today.
TSW
TSW
