Would these shocks be good?

[bucket]

Where so I start?

Upload pics of the springs?

Post model info about the shocks that I currently have?

Some pictures of the leaf springs, bushings and the shackles might give some kind an indicator. Or not. But it's a good place to start.

 

[Edelbrock]

Pics

 

[Edelbrock]

Pics 2

 

[Frankenchevy]

A K5 can ride much more decent without spending that kind of money though.

The difference between Tuff County or BDS and others like Rough Country, Pro Comp or old Rancho is night and day.

It's also all in what you're used to and what is expected. For all we know, the rig in question could already have high dollar custom springs on it, but it's "stiff" because it doesn't ride like a new Escalade. Or it could be on old 2.5" Rancho springs with an add-a-leaf and most any off the shelf leaf spring would be an improvement.

I thought read rough country, but you are 100% correct—it is possible @Edelbrock may be happy with a cheaper option.

 

[Edelbrock]

So based on what my shocks are currently, what should I do? New shocks?

 

[bucket]

Pics

Pics 2

Ouch. I'll bet that sure is one rough ridin sumbitch. The rear may be a lot of it too. I see a leaf added in, plus it looks like the lower "overload" leaf has been heated with a torch and bent to contact the rear of the spring at all times.

The front springs I'm not so familiar with anymore. I don't recall which of the common brands used those leaf ends and those leaf wraps. I'm thinking Pro Comp, but not positive. No matter what, they look like thick and stiff springs. The rear bushings are shot too.

 

[Grit dog]

My scientific analysis (pics tell so much) is the rear springs are some sacked out original springs shored up by that bent ass overloaded leaf. = very rough.
The fronts as evidenced by the worlds cheapest rough country shocks (same as the clapped out rc shocks that came on the 86) are likely RC springs also very rough.
I had an old K5 back in the day (10 years old was old in the salt belt. It was Swiss cheese by its 10th bday!) The front “lift” was the same as your rear springs. Someone clamped a short overload in under the oe leafs and it produced a 3-4” “lift”.
Those springs didn’t move! Like rocks. I did put a plow on the front and the only part of the front springs that flexed under the weight was the last little bit on each end. Worked for most of the winter until it just broke a spring on one side.
Honestly, your only real bet for a decent ride is new springs all around or at least some decent front springs and some good half ton rear leafs and the lift block.
That rear 4” block and the homemade overload leaf are giving it 5-6” of lift I’d guess. Gotta think of the height of the new springs shored pack and block to guesstimate what you’ll have after replacing the rear springs with _____.
And yes I believe it rides rougher than corn cob butt wipe! At least my K20 has good original rear springs and the RC front springs are a bit more compliant with the transplanted big block under the hood.