[Bam]

I'm looking for 3rd member that will accept 4:11 gears. My rear end has 3:08 gears and the carrier will not accept taller gears, hoping someone has one laying around.

 

[1937Austin]

You can install any 4 series ring gear in a 3 series carrier if you buy the ring gear spacer kit. It comes with the spacer and longer special bolts to accomodate the spacer. I'm running a 10 bolt GM, but also used a spacer to go from 2 series to 3.73 gears. They are still available for the '55-'64 carriers if you decide to go that route.

 

[Str8axle]

Buy a spacer. It'll make life easier.