Automotive Car Seat Lumbar Adjustment Knob

A client of mine commissioned me to create a lumbar adjustment knob and end cap on a car seat he was planning on putting into his 1932 Ford five window coupe. The car seats are unknown and closely resemble the "flow fit" seats out of a 1980's or early 1990's fox body Saleen Mustang. The seats are gray with red piping and the head rest is hollow in the middle. The model fits like it should, even the end caps. I created the model from scratch using scan data as reference. Sorry, it's not anything