Pascal, I first went with an early 50's POWERGLIDE passenger car torque tube diff, that would be 5 lug. You can marry the 3:55 torque tube with a '48 or earlier 6 lug AXLE. This works great although this stuff is getting hard to find in the States. If you join Vintage Chevrolet Club of America, you will able to place wanted ad and for this kind of swap.
That said, I later located a mid 60s truck rear end, 6 lug, lots of different ratios.
Best of luck
Jim
Last edited by JiMerit Boltr#43; 07/03/2023 3:11 PM.
