72 with 3/4 axles

[wingnut62]

Ok so I am restoring a blazer for a guy and he's requested an LS swap, no biggie, new gauges, steering column etc....basically fix whats broken and update lots of 'stuff'. At any rate my question for anyone here is this, he has the 14 bolt 3/4 ton axles under it. He has only had this blazer for about a year and doesn't have much info on what the PO did to it. It is a four speed vehicle, lifted to the sky of course and rides like a tank.

Don't crucify me when I ask this BUT did they make a 3/4 ton production Blazer? If so what was the designation, K20? I have searched the internet a bit and all I can come up with are burbs and trucks that are K20's. I suspect that the PO probably did an axle swap.

He wants the ride smoother and as I am not current on the four wheel hard core aspect of things, what shocks would you all recommend? Currently has a st of unmarked brushed aluminum cased shocks with external gas cylinders connected via a braided steel line. It appears that the charge cylinders have a charging valve at the bottom of each one. Perhaps I can release some pressure and this 'could' provide the softer ride he is after but can any of you shed some light for me?

Also he wants rear discs vs drums. Have found a couple options but not too many of course. Any advice welcomed.