41-46 vs 47-54 CHEVY TRUCK Spindles and brake kit fit question

Anyone know if the spindles on a 1941-1946 Chevrolet 1/2 ton pickup truck are the same as 1947 - 1954? I'm looking at a disk brake kit from Speedway that lists it as 41-59 but their install instructions say 47-59 so I called them. They said 47 and later only. A lot of other companies offer a disk brake kit for 41 - 54 but they cost a lot more.

here's the one I was lookng at: http://www.speedwaymotors.com/Deluxe-Disc-Brake-Kit-1941-1959-Chevy-Half-Ton-Pickup,4622.html

 

According to the 1953 parts book- 41-50 part# 607306, forge# 3664549,
51-53 part# 3696337, forge# 3694217

 

I bought the same brake kit as that for my 40 with a Mustang II front end.

I think, the difference is in the bearings & races. When I put mine together, I at first didn't replace the races in the rotors, and it didn't fit right, after calling tech, the races needed to be changed to fit the chevy 11's on the Mustang II spindle.

That being said, I would imagine the race in the rotors, and bearings will be the deciding factor. Speedways tech dept has been right on everytime I bought something from them....

Hope this helps anyways

 

I don't have the answer on your spindle question - but why not just upgrade to the larger and more efficient Bendix brakes used on the '51 and later 1/2 tons? You should be able to find a hub to hub complete axle assembly right here on the HAMB as some seem to feel the need for an IFS. The axle is a bolt-in to the earlier trucks.

I know disc brakes dissipate heat quicker, but frankly, I don't slalom race my ol' '53 so repeated hard brake usage is not an issue. These trucks were designed to stop 1000 lbs or more of hay, dirt, manure, you name it - the drum brakes work really well on a cruiser p.u. Just my .02 cents worth.