How Low Can I Go? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

NPilot1975 · 01-26-2006, 01:32 PM

How much notch can I run on the back of my frame without the rearend contacting the bed floor? I am going to run the stock 12 bolt rearend and don't want to cut the floor. Thanx

72MARIO · 01-26-2006, 02:02 PM

I think mine was a 3" notch and if the axel was to bottom out it would have hit the floor.At that point I decide to just keep running around with the 2-3" of travel I have now.

see ten · 01-26-2006, 05:05 PM

You can always go with the 4x4 guys trick of "shaving" the differential. Of course you would be doing the top instead of the bottom. If you do a search I am sure you can find some info about this. Some of the extreme 4x4 crowd actually shave off the bottom of the differential. I have seen as little as .5" to a couple of inches. Some people take off some with a sawzall and then weld a reinforcement plate across the bottom. I have also seen them just grind off the excess casting across the bottom of the chunk and cover. I am sure this same principle would also apply to the top. I don't have any experience with this so I can't vouch for it. But if guys with monster tires who are dragging their diffs over rocks can do it, I don't see why a lowrider needing an extra inch or so of clearance couldn't do it.

01-26-2006, 01:32 PM	#1
NPilot1975 Senior Member Join Date: Aug 2002 Location: Plymouth, MA Posts: 891	How Low Can I Go? How much notch can I run on the back of my frame without the rearend contacting the bed floor? I am going to run the stock 12 bolt rearend and don't want to cut the floor. Thanx __________________ 1972 Blazer body...need to get a thread started for the rest of the story

01-26-2006, 02:02 PM	#2
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: How Low Can I Go? I think mine was a 3" notch and if the axel was to bottom out it would have hit the floor.At that point I decide to just keep running around with the 2-3" of travel I have now. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

01-26-2006, 05:05 PM	#3
see ten WTB this ad Join Date: Sep 2004 Location: Lafayette Georgia Posts: 5,074	Re: How Low Can I Go? You can always go with the 4x4 guys trick of "shaving" the differential. Of course you would be doing the top instead of the bottom. If you do a search I am sure you can find some info about this. Some of the extreme 4x4 crowd actually shave off the bottom of the differential. I have seen as little as .5" to a couple of inches. Some people take off some with a sawzall and then weld a reinforcement plate across the bottom. I have also seen them just grind off the excess casting across the bottom of the chunk and cover. I am sure this same principle would also apply to the top. I don't have any experience with this so I can't vouch for it. But if guys with monster tires who are dragging their diffs over rocks can do it, I don't see why a lowrider needing an extra inch or so of clearance couldn't do it.



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