The rarest of the M/T center sections. Far less of these ever turn up than the ones he made for the Olds/Pontiac rear ends. Most of the diffs he made for the Chrysler 8 3/4s were aluminum. This has a Jack Geis 'Locker' mechanism in it, a pretty rare piece in itself. Jack was one of Mickey's buddies in Long Beach. Jack was an inventor, machinist, and he manufactured his own speed parts. I remember seeing these 'lockers' for sale in Seattle at the old Compe***ion Specialties speed shops in the late '60s. What's nice about them, is that you can take the locker out, put your front and rear spyders back in, and your open. Beats the hell out of the tried & true "Lincoln Locker". 3.36 gears. I suspect with the locker in it, somebody was using it for Dry Lakes or Bonneville. It'd work for drag racing if you had some shorter gears in it, and you were only running about 500 H.P. Gotta figure Chevy was using that rear end (stock) with their 425 HP - 425 Lb. Ft. 409 in '63-'64 (solid lifters/cam & dual quads). The Thompson is built way stouter than the stocker. No chips in the casting. No cracks. Never been welded on. No mag corrosion. No broken teeth on either the ring or pinion gears. Everything turns free. What you see on gears is surface rust. When I got it, I squirted about a half a can of GIBBS on it. Not only did it lube the rotating ***embly, GIBBS prevents Magnesium for corroding. CALL: (360) 482-1251. This is a Land Line. I can neither receive, nor can I send Text Messages. Thanks for looking, Doug Pratt
The Jalopy Journal
