Auto driveshaft application for racing
Auto driveshaft application for racing
(OP)
Most common driveshafts today (other than exotic lightweight shafts) are 1020 carbon steel welded to 1035 forged steel yokes which are adequate for strength in our application but we experienced a fatigue failure in the tube adjacent to the weld. What post weld heat treatment and or shot peening would be recommended to improve the fatigue life. The original tube was .085 wall and we are going to .120 wall DOM tubing.





RE: Auto driveshaft application for racing
Since it appears that failures are uncommon, was the fatigue failure simply due to a poor quality weld or added loads incurred in racing?
RE: Auto driveshaft application for racing
Do you think the tubing should be changed to chrome moly steel??? We are pretty much stuck with the 1035 yokes.
RE: Auto driveshaft application for racing
RE: Auto driveshaft application for racing
Jesus is THE life,
Leonard
RE: Auto driveshaft application for racing
BTW, if the rules allow, I'd change the whole rear assembly to the alum. Dana. You get a slightly larger ring gear (8.5" vs. 8.2 in the orig. Eaton) AND larger dia. axles too.
I did this swap in my warmed 500+ HP L89 '69 Vette because I wanted a 2.72 gear for cruising, and a 5 speed Doug Nash trans. allows this with its very low 1st gear.