high hump - low hump?
 

whats the difference? why did chevy make 2 different floor boards?

High hump is actually bolted on. It's for manual shift trany's. Low hump was for auto-matics. Only thing I can think why having two different floorpan was for clearance for the manual. Anyone have the real reason.

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Edwards Air Force Base, CA
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1970 Short Step, 350/T350, more mods coming soon.

Jes, you're not 100% acurate there.
a large hump came in all 4X4's, all bicg blocks, and all 4 speeds. Everythign else should have a small hump. Only thing that is not clear, the V-6. (my GMC was a 305 V-6/TH400...but it has a high hump.)

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio