[sunman]

A Pro Shock part #ASB/SR5 A B58 P fits where the AVOs I have are, the stock shock location.
3 way rebound adjustable.
10” springs I’ve got 200# on these but 170#s came with RCC suspension.
13 1/2” ride height, 10 1/2” to 15 1/2” stroke.
The B58 stands for 5/8” spherical bearings you probably want B12 for 1/2”. Check that.
P stands for polished.
This is similar to what Classic Roadsters used and gives you an idea of what fits.