R151F, forward shift RF1A and Marlin Clutch, flywheel.
This would be great for your first gen Martin, if the guy wasn't so proud of it! The R151F's low first is nice, but not one grand nice when you can get 3 nice W56 trannys instead and stack transfer cases.
'91 Pickup - Imelda
'08 Tacoma TRD
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"To live is to suffer, to survive is to find some meaning in the suffering." -- Friedrich Nietzsche