I did a search here and can't find and answer to will a 1974 D100 100hph speedo head swap in a 1983 D150 with the 85 mph head? Also is there a speedo head that reads above 100 that will fit the 83? Thanks

For the next guy that wants to do this it will NOT work.

Somebody one here used a car speed ibm their truck bit can't recall yr of car or truck

70s truck head in a 80s cluster



71 B 150 MPH

They look good. How about the important pictures? The ones of the back side.

Geez Stumpy, its Sunday.

The things a guy will do for his buddiesa on Sunday. .




Ok, the speedo head on the 80s trucks attach from the face. The 70s trucks and B body speedo heads attach with 2 screws into the back of the head but use the same cable hookup. . I had to remove the part of the circit board and housing to clear the odometer spool. I soldered the jumper wires in place. I need to find something to seal the opening I made. You can also see the little LED lights I installed for better illumination.

Thanks for the pics. Sorry about making you work on Sunday.