HELP!! advice required for disc brake conversion

[aussie fj]

hi guys..posted this on the "mini truck disc brake conversion for dummies thread" below...but though i would post it here to make sure somebody would see it.

the situation is as follows..

currently in the process of doing a conversion from drums ( fj40 1975) to disc ( complete 60 series knuckles, calipers, rotors, , with fj55 30 spline axels/birfs and aisin hubs.

the problem i have run into is once i put have placed the aisin hub cover, and then the outer c clip onto the axel, i go to install outer hub cover and spring, and it wont fit!! it is getting caught up on the outer c-clip itself, and it seems as though the axel is to long by around 3-4 millimeters.

after reading this thread a couple of more times... it seems as though the clip for the axel can be a tight fit?? again, i can install it easily..no need to pull axel out, and have around 5 mill behind the clip before any of the other hub internals.. i have tapped/lightly hit the axel end to try and move it further into the diff housing...no go....

anybody got ideas?? pulling my hair out atm!!!

thanks in advance
Luke

 

[Mace]

Are you using Mini truck Birfields or 76-78 Cruiser Birfields?

The cruiser birfs are longer.

 

[aussie fj]

umm, i think they are cruiser birfs...and the aisin hubs are short...maybe get the longer hubs?

 

[Mace]

or shorter birfs..

 

[crushr]

Get the shorter birfs - the longer 76-78 LC birfs and locking hubs are becoming increasingly hard to find.

The shorter birfs are: any SA minitruck birfs, any 79-83 F40 birfs, and I believe any fj60/62 birfs. AFAIK, all upgraded birfs (longfields etc) are the shorter pattern.

 

[Mace]

Depends on where you are. Aussie stuff has different availability than US stuff does