Minitruck Front Axle Disc Brake Conversion For Dummies (FAQ)

[Honger]

@Christian im about to do the same as you. 60 series knuckles onto a hj45, do the 40 series TRE match the 60 knuckle arms? What did you do for flexible brake lines?

I used 70-series knuckles/hubs, but they are identical to the 60-series ones. For the flexible brake lines I used Part #96910-32305, Flexible Hose No.1 (Front). You'll need one for each side obviously.

Joel

 

[Brad 1979 HJ45]

Thanks, I'm just trying to sort everything out before I start

 

[FJ40Jim]

Brad, AFAIK the 40-series TRE are all one size smaller than 60/70 series parts. 40 TRE needs a tapered bushing to fit tight in the 60 knuckle arm. Or custom steering linkage that is 60 series ends with 40 series lengths. Or your 79-newer fj40 arms might bolt onto the later DB knuckles.

 

[65swb45]

Or your 79-newer fj40 arms might bolt onto the later DB knuckles.

This one.

 

[FJ40Jim]

It seems likely, but I wasn't sure that late model drum brake & disc brake frt knuckles have the same steering arm pattern.

 

[flintstone40]

Does anyone know any reason why I could not use my 1966 axle housing to do the minitruck swap?I have all the minitruck parts.I still need to source an upgraged 3rd member.any help would be great.thanks.

 

[Tireguy87]

Does anyone know any reason why I could not use my 1966 axle housing to do the minitruck swap?I have all the minitruck parts.I still need to source an upgraged 3rd member.any help would be great.thanks.

I had the same axle housing. It's ball and claw and the axle shafts are 6 spline. It also uses a brass inner axle seal that I believe is NLA. I'm sure you COULD use it, but now would be a great time to upgrade to stronger components that are readily available.

 

[1973Guppie]

Does anyone know any reason why I could not use my 1966 axle housing to do the minitruck swap?I have all the minitruck parts.I still need to source an upgraged 3rd member.any help would be great.thanks.

No you can not use this axle, you will have to source a later style axle that uses birfields.......

 

[flintstone40]

thanks for the input.66 axles will soon be up for sale.

 

[Drake2]

Excellent article, thank you!