help need good info on 3/4 ton disc conversion

[Rooster's 67]

need some help/info please, 3/4 ton disc conversion
I got a friend that we are going to convert his front suspension to discs, but he wants to do it on the cheap. it has the 8 on 6.5 bolt pattern, what donor vehicle do we need to keep the 8 on 6.5's and go to discs?

3/4 or 1 ton components?

I am believing but am not sure that we can use the 73-87 1 ton control arms, spindles,rotors and calipers since they have the 8 on 6.5 pattern.

Forgive me if this has been covered as my searches found only 1/2 ton conversions which i know well.

Thanks in advance
Spence

[panhandler62]

I picked up the front suspension out of an 84 to do my 68.

[lolife99]

Rooster's 67,... this is on the board for sale right now. 89-91 'burbs are the old square body style like the 73-87 'burbs. Should work fine. http://67-72chevytrucks.com/vboard/s...d.php?t=304623

[N2TRUX]

lolife99 posted a smoking deal for ya Rooster's 67, although shipping from San Diego to Garland,Texas might kill the deal. If you want something closer PM forum member texassquarebodies and Tony will fix you up.

[Rooster's 67]

Yeah N2TRUX your right, damn good deal, but sounds like a half ton, IE 5 bolt pattern, actually need to know on the 73+ what vehicles have the 8 on 6.5 bolt pattern
I can find the parts on the board, or localy just nobody at the yards understand what the he!! your talking about when you start talking like we do. still looking for the right info

[lolife99]

Rooster,... the link I posted was 3/4 ton 8-lug stuff. You need all the front parts off of any 73-87 3/4 ton 2wd truck. Get the whole crossmember and steering stuff (Including P/S box and master cylinder purportioning valve and lines) and you should be good to go. You don't really need the crossmember itself,... but some people like to swap it all as a unit. You basically need from the a-arms out and all the associated parts. Like I said earlier,... The 2wd 3/4 ton Suburbans ('73-'87 or '88-'91) will work also.

[N2TRUX]

lolife99 is correct. The ad he linked is for 3/4 ton parts. Again I suggest you contact forum member texassquarebodies. This man knows his 73-87's and has a huge lot full of them. You won't find a friendlier person that will be glad to tell you what you need.

[nrb's70gmc]

i also have a 3/4 ton 2wd and wanted to convert to discs in the front- my question is are the 73-87 3/4 ton control arms a direct bolt on to the stock 70gmc crossmember? are thay the same width? What model year sway bar would i use? Thanks

[SCOTI]

Originally Posted by nrb's70gmc

i also have a 3/4 ton 2wd and wanted to convert to discs in the front- my question is are the 73-87 3/4 ton control arms a direct bolt on to the stock 70gmc crossmember? are thay the same width? What model year sway bar would i use? Thanks

The arms are interchangeable. Sway bars will interchange as well.

[nrb's70gmc]

will 73-87 3/4 ton 2wd trucks spindles mount on my factory drum control arms?

[lolife99]

Originally Posted by nrb's70gmc

will 73-87 3/4 ton 2wd trucks spindles mount on my factory drum control arms?

Uppers will with a ball joint swap.
The lowers need to be 3/4 ton lower control arms,... because the ball joint hole is a larger size.

[nrb's70gmc]

Originally Posted by lolife99

Uppers will with a ball joint swap.
The lowers need to be 3/4 ton lower control arms,... because the ball joint hole is a larger size.

my truck is a 70 gmc 3/4 ton-will my factory 3/4 drum control arms work?