I agree with 53 4 me. I put 3.55s in my 46 and boy I'm glad I did, what a difference. It's just as much work to swap the gears as it is to replace all the bearings. The whole job isn't that difficult. I'd say save your pennies and get the 3.55s for it. You'll be happy you did. Either way make sure you have access to a dial indicator, you can't do the job without one.

Good luck, if you have more questions we're always here.

George