Front brake conversions
 

I have yet another question! Will the front spindals and disc brakes from a mid 80`s chev 1/2 ton work on my 68 gmc??? If not is there any truck out there that will be a direct swap from the old drum setup to discs?

Re: Front brake conversions
 

Yes they will!!!

Re: Front brake conversions
 

Does it involve changing ball joints As well or should the 68 ones work??

Re: Front brake conversions
 

I think you need to switch ball joints as well as the outer tie rod end but am not totally sure.

Re: Front brake conversions
 

Yes, you will need matching ball joints and I think steelhorse is right about needing the outer tie rods too. Even swapping parts from a 71-72 requires the matching ball joints.

Re: Front brake conversions
 

The ball joints are the same diameter, but the shaft that has the threads on it is different IIRC. I did my swap from an '89 burb but I used the control arms, tie rods, center link, etc from the burb...basically everything except the crossmember. You should just be able to put the ball joints for the 80 into the existing 68 arms, and install spindles. As mentioned, you would need to get the ball joints and center link from the donor vehicle. I'm not sure that anyone makes an outer tie rod for a 73-87 that would adapt to your 68 inners, but someone else might know.