I guess I'll toss my two-cents in this Saginaw vs. Muncie discussion.
While I've never broken a Saginaw and have broken a Muncie, if I planned to abuse a transmission there is no question in my mind that I'd choose the Muncie.
I also think its unlikely a 235 would challenge either, so from that standpoint it makes little difference. However, I've never seen a shifter designed for the Muncie in a AD truck and on that basis I'd choose the Saginaw and the shifter that Patrick's offers.