73-87 Suspension

[AusMarty]

I picked up a 73-87 front suspension for my 67 it has 5 lug 1 1/4" rotors
and rubber inner A arm bushes, so does that mean it's a c10 unit ?
I hear people talking of the 3/4 ton supension and was wondering if there is any difference.
I guess I just want to make sure what i've got before I start ordering parts

[jimmydean]

The 3/4 ton would have 8 lugs I believe.

[randyjohn]

my 3/4 ton has the 8 lug 1 1/4" rotors. the 5 lugs are for the 1/2 ton but i'm not sure if the PO could've put 5 lug rotors on 3/4 ton spindles and a-arms?

[impala_631]

they were avalible in 1" or 1 1/4", the bigger one were refferd to as the "heavy halfs", the spindle shaft is 1/4" thick, bigger bearings, and different calipers/rotors, i just changed my daily over to all heavy half and added some drop spindles too

[N2TRUX]

Originally Posted by impala_631

they were avalible in 1" or 1 1/4", the bigger one were refferd to as the "heavy halfs", the spindle shaft is 1/4" thick, bigger bearings, and different calipers/rotors,....

Actually GM and the Auto Parts refers to the 1 1/4" as Heavy Duty (HD) brakes. GM used the term "Heavy Halfs" to describe a series of trucks that were considered 5/8s ton truck. The HD brakes were standard on this series, but were available on all GM 1/2 trucks.
As an example, they were listed as an option on the SPID sheet of my 82 C/K 2wd Blazer.

[impala_631]

Originally Posted by N2TRUX

Actually GM and the Auto Parts refers to the 1 1/4" as Heavy Duty (HD) brakes. GM used the term "Heavy Halfs" to describe a series of trucks that were considered 5/8s ton truck. The HD brakes were standard on this series, but were available on all GM 1/2 trucks.
As an example, they were listed as an option on the SPID sheet of my 82 C/K 2wd Blazer.

got ya, i must have be misinformed on the "heavy half"

[GWEE]

so what all would i need to buy from the auto part store. and what about the back is there a OEM way to convert to disc?