This is a Rocker Arm Adjusting Screw for all 1929-1933 Chevrolet Cars & Trucks. This all new reproduction is Made in the USA! Replaces GM# 835664

This reproduction of an after market item helps keep oil on the rocker arm assembly and also acts as a silencer to help quiet the valve noise. It fits all Chevrolet cars & trucks. Soak in clean motor oil at least one hour before installation.

NOW AVAILABLE! This is a set of 12 Rocker Arm Adjusting Screws & 12 Nuts for all 1929-1933 Chevrolet Cars & Trucks. Sold in a set of 24 pieces. This all new reproduction is top quality and Made in the USA! Replaces GM# 835664, 124929

This is a rebuilding service for rocker arms of 1929-1933 Chevrolet cars & trucks only. Disassemble and send in your original rocker arms and shafts. We will weld up and resurface the tips, install new bushings (where required) and fit them to the newly hard chromed shafts. For 1929-1933 models, you should also check your rocker arm adjusting screws for damage. The threads are often broken and will not adjust properly. To check these, remove them completely from the rocker arm and inspect the threads. If they need replacing, order FS-68 adjusting screw & nut set separately. 1929-1931 Models also require rocker arm oil wicks. Order part # FS-75 separately.