1989 Suburban 2WD 3/4 to 1/2 Swap?

[lolife99]

Originally Posted by SCOTI

The upper a-arm studs are likely larger on the 3/4 ton so the shafts might need to be drilled out to utilize the 1/2 ton arms as is.
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The other option would be to put a 1/2-ton ballpoint in the 3/4-ton UPPER a-arm.
You can’t do that with the lower a-arm because the 3/4-ton ballpoint hole is larger than the 1/2-ton version.

I would still not swap the crossmember itself.