Another question: Big hump/small hump? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71Subman · 10-27-2003, 01:28 PM

I am looking to replace my floor mats and am finding sets for 'big hump' or 'small hump'. How do I know which one I have?

**CPNE** · 10-27-2003, 02:22 PM

If you have a 4x4, a 2wd with a 4 speed, or a 2wd big block auto you have a high hump. All others were low hump cabs.

A high hump is a bolted in transmission tunnel, a low hump is a transmission tunnel that is stamped into the floor.

VTKidder · 10-27-2003, 02:23 PM

The 'big hump' is usually on a 4-speed or something of the like, the 'hump' in the middle of the floor is about 4" tall, and can usually be removed by unscrewing a bunch of sheet metal screws around the edges. The small hump is about the height of the drivers and passengers floor pans, maybe 1" higher. It's night and day the difference between small and large humps.

71Subman · 10-27-2003, 05:50 PM

Excellent! Thanks for the info. I'll get the hang of this thing yet!

10-27-2003, 01:28 PM	#1
71Subman Registered User Join Date: Oct 2003 Location: Everett, Wa Posts: 138	Another question: Big hump/small hump? I am looking to replace my floor mats and am finding sets for 'big hump' or 'small hump'. How do I know which one I have? __________________ Noise Makin', Gas Gusslin', Big Ass Metal Monster! 1983 3/4 4x4 P/U (the Sub is gone) 1967 Firebird (Drag racer) 1967 Firebird (resto in progress) 1999 Camry (Wifey's econo-rail ) 1997 VW Jetta (Daughter's cruiser) 1989 Le Mans (just extra for the boys to drive)

10-27-2003, 02:22 PM	#2
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	If you have a 4x4, a 2wd with a 4 speed, or a 2wd big block auto you have a high hump. All others were low hump cabs. A high hump is a bolted in transmission tunnel, a low hump is a transmission tunnel that is stamped into the floor. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

10-27-2003, 05:50 PM	#4
71Subman Registered User Join Date: Oct 2003 Location: Everett, Wa Posts: 138	Thanks !!! Excellent! Thanks for the info. I'll get the hang of this thing yet! __________________ Noise Makin', Gas Gusslin', Big Ass Metal Monster! 1983 3/4 4x4 P/U (the Sub is gone) 1967 Firebird (Drag racer) 1967 Firebird (resto in progress) 1999 Camry (Wifey's econo-rail ) 1997 VW Jetta (Daughter's cruiser) 1989 Le Mans (just extra for the boys to drive)

10-27-2003, 02:23 PM	#3
VTKidder Registered User Join Date: May 2003 Location: Vermont Posts: 996	The 'big hump' is usually on a 4-speed or something of the like, the 'hump' in the middle of the floor is about 4" tall, and can usually be removed by unscrewing a bunch of sheet metal screws around the edges. The small hump is about the height of the drivers and passengers floor pans, maybe 1" higher. It's night and day the difference between small and large humps.



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