This would be a good race!
I have 90% of the parts to build a slick shift 18 spline box. All gears are new. PM if interestedAnyone use the Passon performance slick shift synchro kit or know of any upgraded 4 speed parts . Looking to upgrade the stock stuff on my original 69 23 spline, without getting a full race trans built . Trans won't stay in gear now and is hard to shift at high rPm. I'm putting a new clutch in and figured I go through the trans while it's out