Drive shaft- alum vs moly vs carbon vs price ?

[patrickt]

Originally Posted by Morris

Jim

You might have to change the Yoke on the Pinion nose cause most Dana 44's have a Yoke for a Spicier 1310 U-Joint... and they are fine for the street where they don't tax the drive line.... but racing .... is a different story.

You can buy a yoke for the transmission any size you want. stay with good quality products.

This is kind of interesting. The theory at ERA, when they were building my car, was that for a predominantly street driven build, they wanted a Spicer 1330 Series on the front of the driveshaft, and a 1310 Series on the back of the driveshaft. Their theory was that if something locks up badly, and one of the u-joints is definitely going to go, then they wanted to control which one did, and they wanted the rear to be the one that went. Of course there's a driveshaft hoop and, their theory is they wanted the driveshaft flopping around only until you threw the clutch in, not until you came to a stop. Over the last decade, I've heard smart engineers endorse that theory and other ones call it stupid. So, pick your poison, I guess....