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Re: 69 C20 drums to discs from 74 C30-Is this doable?
Quote:
Originally Posted by weim55
Two specific things that I’m concerned about :
Is the spindle and caliper mount For DRW and SRW the same?
Is The track width too wide for the 69 vs ‘74?
In a perfect world I would like to swap out the entire front crossmember Complete with all of the suspension and brake components using the original C 20 springs in place of the much heavier C 30 springs.
Steve weim55 Colorado
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The entire x-member can be swapped over or just the parts needed. On 1/2 tons, using the later x-member in the earlier frame requires tweaking of the motor mount stanchions. It's possible the larger trucks will have a similar issue.
On Square body C30/1-tons, there are 2 different types of calipers depending on the SRW/DRW options so that's a difference that needs to be considered when mixing parts.
The track width will increase going from drum to discs. Track width up front from a '69 to a '74 is minimal per side (.5-.75" greater).
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