I originally bought 4” foam and it was way to soft. Rather than play the 3 bears, looking fot the one just right, I did some digging.

Definitely, do not take the following as good advice, it is just what I did… like theowing pasta at the wall to see what sticks.

I believe I used 2” heavy density foam for the back.
I used a bit heavier density at 3” base

it was comfortable but not yet were I wanted it. I added a 1” less dense on top of that. More comfortable.

BUT I DIDNT FIT WELL.

Back to the drawing board: I upholstered the driverside differently. I used 2” of the heavy density foam rather than 3” for driver side and 1” foam for the back.

I fit better but a bit less comfy.

weight loss has improved the fit and a future tilt column will have me re-upholstering it again or finally punting and taking it into a shop


1954 Std Cab 3100 w/ 2 spare Engines
IL
1954 three window 3100