What is the best/cheapest way to beef up the rear suspension on my half ton 1969 C10 Chevy Pickup?
Doug H asked:
I need to pull my construction tools trailer with it and it sags it down pretty bad in the rear. The key word here is “cheapest”
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All you need is new rear springs. 40 year old springs sag, they are weak. Replace them and the shocks and your good to go.
If you need even more you can add air helper springs to it
check out and
install leaf spring helpers not to pricy and easy to install…good luck
If all you want to do is level the ride height while you are pulling a trailer, the cheapest way is to install a set of air shocks. You can add air when you need to pull the trailer, and then keep a good ride when you are not using the trailer by removing the air and returning the vehicle to the original height
I’d say air shocks too. If I remember right that truck uses coils in the rear and not leaf springs. Wouldn’t be the best way but definitely the cheapest.
There were factory option available overload springs available for those trucks. They were a leaf spring (1/4 elliptical) attached to the frame and the spring ‘eye’ had a pad that contacted the axle as the suspension compressed. You may be able to junkyard some for the factory optioned units.
Air bags. Thee are airbags that are designed to be located inside the coils. I would bet that you cannot find one available for the 67-72, but you may be able to find one that works.
Air shocks. Simple to install. They replace the factory shocks, then you just use an air compressor to charge the shocks. You could also add a small onboard air compressor and controller unit (like other overload airbag kits) and control the air pressure in the shocks.
The air shocks would be the cheapest.