Has any one replaced a stock 3 sped with a 4speed.?Is it a direct swap or does the enclosed drive shaft need messing with?A friend has a 4 speed and i already have a hole in the floor board or 3. grin My tranny craped out today and my 51 is my daily driver frown

1942 1\2 Ton
1951 1\2 Ton 55 willys cj-5
1954 and 59 Cushman Scooter
1960 Biscayne Sedan
1965 G/10 panel van
1966 C/30 Grizzly Motorhome
You know you're a 'Bolter when your daily driver is older than you are...
My progress pics