Another "what springs are these?" question

[USSkoval]

Can anyone identify these front lift springs on my '77? They appear to be a 4inch lift, but I would like to know the manufacturer. They need new bushings, but I'm not sure if I would rather just go with something else.
PICS:

 

[thatK30guy]

Look like old firm ride Rancho's to me, number 40054S. These are 4" springs.

Are the bushings painted black over red?

 

[thatK30guy]

They could also be Pro-Comps as I believe they share the same springs as Rancho.

 

[USSkoval]

Not sure on the color of bushings, I'll scrape some paint off of them. The torn one seems to have some faint red exposed after power washing everything yesterday.

**Also, a couple of the crusty old shocks have the remains of Rancho stickers on them.

 

[thatK30guy]

If the bushings are red, my money is on Rancho. Those old springs have something like a 750 lbs. per inch rating. Yikes!

 

[USSkoval]

Hehe, maybe they softened up a bit after all these years

 

[NV_K5]

Are the bushings painted black over red?

No that's rust.

 

[USSkoval]

No that's rust.

Hey, that's pretty clean for a beaten Ohio truck