I purchased a drive shaft from ARP when I put together my motor before installation. Is there a specific shaft that is marked HD or should the ARP driveshaft be HD already?
Funny... I had a case of Valvoline SAE50 race
oil sitting in the garage and then someone convinced me to stay with the Mobil1 15W-50. Took the Valvoline back.
Will make the change here some time... maybe once the season winds down a little bit...and let you know how it went.
Thanks for all the info!
JP