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Global Mod,
Mod | | | Forums66 Topics128,021 Posts1,055,356 Members48,420 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | I installed a C4 front end on my streetrod. Mine is an orginial salvaged Corvette type. You can find them for around $500.00, which is what I paid. The link you posted is a modified C4 type (the mono leaf transverse spring is removed). This is a good idea as the orginial setup is just about impossible the change either the ride height or spring rate. Also, very few people know much about changing things around on the orginial other than a racing setup. IMHO, the 'vette frontend is the best setup for a heavy frontend like a truck as the Mustang is for a ligher vehicle unless it's beefed up. Have helped install a C4 rearend in a buddy's '48 1/2 ton International. Not on the road yet, but man, it looks great. Edit...How does it ride? Very crisp steering. It goes where you point it, so you have to keep on top of it as you would for a sports car.
Last edited by beltfed; 10/02/2011 2:31 PM.
Six volt guy living in a twelve volt world
| | | | | Joined: May 2011 Posts: 99 Shop Shark | | Shop Shark Joined: May 2011 Posts: 99 | How is the ride height? This is just an idea at this point for me. As I am working on the truck I am finding more damage than originally planned for. I am going to be fixing the cab over the winter and go from there. | | | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | In my case, ride height was set with wheel/tire size. One thing to watch out for is 15" wheels. You can't get much negative offset with 15's as orginial wheels were 16" and 15's will hit the calipers.
Six volt guy living in a twelve volt world
| | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | I have a C4 suspension for the opel project, however I tossed the stock springs and sway bars for coil overs and tunable sway bars.
I think I paid $1k for the whole IFS/IRS combo a long time ago.
I trimmed the rear cover for a custom mounting arrangement for project and built my own mounting brackets.
16" wheels minimum on the 84-86, and 17" wheels on the 87+
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
| | | | | Joined: Jul 2007 Posts: 23 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2007 Posts: 23 | Also check Flat Out Engineering - http://www.flatout-engineering.com/index.html - as they have a kit to install the C4 parts in the AD trucks. I have used the front with good success, but not the rear. | | | | | Joined: May 2011 Posts: 99 Shop Shark | | Shop Shark Joined: May 2011 Posts: 99 | Thank you all for the responses. This is just a thought at this time. I am working on getting the truck in decent shape and driving it a little first. I just want to look at options for the future. | | |
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