I have a Tuff Country 3" ez ride lift on my 81 K20 with Bilstein shocks and the ORD swaybar links. I've had tons of lifted 81-87 trucks and this is the 100% best riding one. I never thought shocks made that much of a difference but in my opinion if you would put a Tuff Country 2" ez ride...
Out of curiosity why did you go that route rather than the ones from USA 1 industries?
1981- 1987 Fullsize Chevy Truck Silverado Door Panels Original Colors (usa1industries.com)
Here is what I can share with you on the SF to FF conversion as I did it on a 86 K20
73-83 14 bolt FF have park brake cables that run up both LH and RH frame
84-91(squarebody) 14 bolt FF have one long and one short park brake cable and run up the driver side frame rail
Backing plates are not...
Thank you, appreciate the info. I had a set bought off facebook a few months ago.....but the guys wife sold them to someone else after I sent the payment. Shady if you ask me. I got my money back but I wanted the step!