Dave,
I found what I think you are looking for. They were available on the L600 and L700 Trucks.
I have set up the pages from the Parts manual on the Technical Page of the Main website so you can open it and print them if you choose.
Main Website Tech Page
Mark D.
1968 W200 Sweptline
1969 D100 Utiline
1971 D100 SE Sweptline
1993 D250 Club Cab Sweptline
1986 W250 Cab & Chassis
1978 D300 Sweptline
E. Brookfield, Massachusetts