Does anyone know the DS side specs of the U-Joint on the 3" aluminum Ls1 driveshafts? i talked to a guy at strange about it and he said its part # U1645 on Thispage. but thats the U-joint they sent me that fits my 2.5" steel 93-97 driveshaft. any input?

 

You need the part # 447X from NAPA.

 

ah... ok, i think thats what i am looking for! thats the entire ujoint conversion from the 3" aluminum Driveshaft --> 1350 Yoke?

 

From what I've read, yes. I will be doing this next week....all the threads I've read on LS1tech, people say they just put that u-joint on their stock driveshaft and everything worked fine.

 

These are the corect 1350 yokes for the LS1/1LE shaft (1310 on DS)

+NEAPCO/PDQ 3-3140
+BRUTE FORCE 3-3140BF
+ROCKFORD K460
+SPICER 5-460X
+PRECISION 348

 

I just paid $28 yesterday from NAPA for a 1310 to 1350 conversion joint...not the 447x either. Dunno if it'll work, I'll probably be better off just ordering one of the others, lol.