Spindle interchange - D100 to B4B

[Bobacuda]

I'm still trying to come up with a way to make the 69 brake upgrade on my truck work, and so far, the only alternatives I have is having going back to the 53 brakes or having my spindles sleeved to fit the 69 hub.

Will 1969 D100 spindles work properly on my 53 B4B straight axle? I think the JY might still have the 69 donor truck.

[austinsailor]

I once tried this by putting 54 Dodge brakes on a 35 Dodge coupe. There is a lot more to worry about than will they fit. Slight differences in angles between the kingpin and spindle, for instance. Difference in distance on steering arm bolts.

Check everything closely before doing anything not reversable.

[Dave72dt]

According to napaonline, most of the same kingpin kits are the same. The D100 lists more application numbers and there are axle weight differences between application numbers. Good chance it will work for you. Take some comparison measurements before you go back.

[carl b51]

I have a 51 B3B I installed the front brakes off a D100 1971 using the spindles , Backing plates and Brakes they fit fine. Hope this helps. Carl