View Single Post
Old 03-21-2014, 12:25 AM   #2
396ci
Senior Member
 
396ci's Avatar
 
Join Date: Jun 2005
Location: Modesto, CA
Posts: 816
Re: 67 c-20 conversion to 5 lug

Quote:
Originally Posted by davsco963 View Post
I am looking for any advice on the best approach to convert my 3/4 ton truck to a5 lug setup. My reasoning behind this is to be able to lower the truck and install disc brakes. I have access to a 93 full size chassis which has the brakes and power steering set up I am looking for but not sure how involved that conversion would be. I do know the frame would need to be shortened six inches to match the 127" wheel base of my long bed truck. Looking for any and all suggestions. Thanks in advance for your detailed responses!
I have converted 2 trucks. First was a 70 6 lug truck w/ power drum brakes and the second was a 72 8 lug suburban w/ power disc brakes.

For the 70, I used a local vendors kit for the front which bolted in completely and for the 72, I just had to buy their 3/4T to 1/2T conversion spindles (I opted for the 2 1/2" drop).

For the rear on the 70, I just need the axles and brake drums but for the 72, I needed a complete rear end. 1/2 ton and 3/4 ton rear ends bolt in the same on the trailing arms trucks but you need to change the panhard bar (I don't know about leaf spring trucks).

I can tell you that the fittings on the 93 power steering box are different and you will need custom hoses unless you use the 93 power steering pump. You will also have to verify the frame width on the 93 is the same as the 67 and the placement of the cab/bed/radiator mounts (as well as the wheel base you mentioned).

If you have more time than money, converting the 93 might be better but it seems like alot more work than simply bolting the other stuff on IMO.

Hope that helped and good luck with your project!
__________________
Brian
XNGH ECV Chapter 58
1972 Jimmy / Blazer Project 2wd
1974 Chevy Crew Cab Shorty
396ci is offline   Reply With Quote