spool?

Just pulled my 3.55s in a 741 case cone style suregrip, and put in a 489 case spool with 4.56s and my end play on both axles is way too much. whats up with that?

You must install a thrust block in the center of the spool, or switch to Green wheel bearings.

I have a good deal on Green bearings if you want to go that route.

E-mail me if you are interested.