This thread is for the general discussion of the Item 1975 K20 The War Wagon. Please add to the discussion here.
I think they were 56’s. The longer of the stock options. And just a bit more than the stock lbs rating. I think i got them from Kansas City Spring but i can’t remember for sure what the name is. I remember it being from the midwest though. I would really like to run longer but this is my first one and didn’t want to get in to deep. +56” might be later in the future. I really like the idea of either pulling a trailer for camping or putting a big camper in the back so i stuck with stock-ish for now. If i knew what i was doing i would like the idea of long flimsy ones though. Then maybe throw a helper spring on for the camping/pulling? If thats how it works but i don’t know.Looks like a great base to start from.
when you take more pictures use a lower mp, or resize them before you up load.
What length rear spring are you using ?
Im not sure if it makes much of a difference but i think i did the 4” flip from ORD. I dont know what i was thinking but i had thrown in the 6 degree shims to correct driveline angle. That was way to much so i swapped the 6degree shims out for 2 degree. Looks much better. When i started this project i wanted to end up with between 4 to 6 inches of lift. Now, balls deep into it im wishing i would have went closer to the 6”. I should end up with just over 4” which is still nice. For the front i have 4” Skyjacker springs with ORD front shackles which i think are a bit longer than stock.I thought those looked like 56" springs. Stock is good, I used a set of one ton springs on my k20 shackle flip. You have the 6" shackle that should have a good angle.

I did a rear shackle flip and I ended up with the 6 degree shims also.Im not sure if it makes much of a difference but i think i did the 4” flip from ORD. I dont know what i was thinking but i had thrown in the 6 degree shims to correct driveline angle. That was way to much so i swapped the 6degree shims out for 2 degree. Looks much better. When i started this project i wanted to end up with between 4 to 6 inches of lift. Now, balls deep into it im wishing i would have went closer to the 6”. I should end up with just over 4” which is still nice. For the front i have 4” Skyjacker springs with ORD front shackles which i think are a bit longer than stock.
I had a 5 inch lift and my 37's only rubbed in the front. I moved my front axle forward to help with that.Do you think 35’s will rub with a taller 4” of lift? I really don’t want to trim. The body is rot free. I like the idea of keeping the body panels stock, uncut. In another 20 years when these trucks are worth good money, i don’t want the body to be hacked up thus driving the value down.