Which are the correct KYB rear shocks ?

[rickf]

The various sources for KYB application info are ambiguous, I hope you can help.

At the root of the question is another question: Is the trailing link / coil spring rear suspension on 67-72 C10 the same as 64-66 C10 ?

Catalogs are showing KYB KG5416 as correct rear shock for 67-72 C10 with coil springs, and show KG5419 for 67-72 with leaf springs.

By year, the catalog shows KG5419 for All 64-66, with no mention of coil or leaf.

By application list for the shocks, both KG5416 and KG5419 list All 64-66 C10, with still no mention of coil or leaf. I don't know if leaf spring was even an option in 64-66. But still, they make the differentiation for 67-72, but list both for All 64-66.

I am guessing the 64-66 is same construction and configuration in the rear as the 67-72 with coil springs, so I should get the KG5416.

Does this sound right?
Does anyone know if dampening is actually different, or is it length, or mounting style, or some combo of these?

-rcf

[steverino66]

Classic Performance sells these and I've had good luck talking to their tech people in the past. Check them out here:
http://www.classicperform.com/6092chevtrk.htm