Rear 6" drop/Front 4 1/2" drop. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ROBO66 · 09-09-2010, 03:43 PM

Hello all. I am in the process of a 67 SWB build. I already have a front end with 2 1/2" drop spindles and 2" drop springs (4 1/2" drop in front). I have a leaf spring rear end and wanting to drop the rear 6". Can this be done using the existing leaf springs, without "c-notching" the frame? Just some additional information; the rear end I went with is a Ford 9".

Feedback would be greatly appreciated.

Thanks, ROBO66

Zoomin · 09-09-2010, 04:22 PM

That much drop can be done on coil spring trucks without a c-notch, but that's about the limit.
Posted via Mobile Device

bovey · 09-09-2010, 06:35 PM

I'm running a 6" drop with coils and ended up having to notch the frame to avoid banging on larger bumps, let alone putting anything in the back.

Blackjeep99 · 09-09-2010, 07:02 PM

I have a 69 GMC swb with leafs. I did an axle flip and got 6in drop but u have t C-notch the frame. Its really not hard I did mine with cpp bolt in kit nice kit it worked great. I did mine by myself in abouT 16 hrs but I bolted and weld the kit. But if u notch rember the brake line I cut thru mine lol that added a bit mor time to the work. and u can pull the axle out and get it all painted up nice and purrdy wile ur at it. Also I moved the axle back 3\4 in to center the weel in the well. I had bout a$180.00 in it all together including paint and new brake lines. Hope I helped

09-09-2010, 03:43 PM	#1
ROBO66 Registered User Join Date: May 2008 Location: Republic, Missouri Posts: 30	Rear 6" drop/Front 4 1/2" drop. Hello all. I am in the process of a 67 SWB build. I already have a front end with 2 1/2" drop spindles and 2" drop springs (4 1/2" drop in front). I have a leaf spring rear end and wanting to drop the rear 6". Can this be done using the existing leaf springs, without "c-notching" the frame? Just some additional information; the rear end I went with is a Ford 9". Feedback would be greatly appreciated. Thanks, ROBO66

09-09-2010, 04:22 PM	#2
Zoomin Man of Mini-Talents Join Date: Sep 2009 Location: Oklahoma City, OK Posts: 4,295	Re: Rear 6" drop/Front 4 1/2" drop. That much drop can be done on coil spring trucks without a c-notch, but that's about the limit. Posted via Mobile Device __________________ Steve Project - Ruth 66 Skylark Project - Lola 60 Biscayne Project - Iron Ox 54 GMC 100 Project - Darth 69 Camaro

09-09-2010, 06:35 PM	#3
bovey Registered User Join Date: Mar 2010 Location: Canada Posts: 73	Re: Rear 6" drop/Front 4 1/2" drop. I'm running a 6" drop with coils and ended up having to notch the frame to avoid banging on larger bumps, let alone putting anything in the back.

09-09-2010, 07:02 PM	#4
Blackjeep99 Registered User Join Date: Jun 2010 Location: Caledonia Ohio Posts: 49	Re: Rear 6" drop/Front 4 1/2" drop. I have a 69 GMC swb with leafs. I did an axle flip and got 6in drop but u have t C-notch the frame. Its really not hard I did mine with cpp bolt in kit nice kit it worked great. I did mine by myself in abouT 16 hrs but I bolted and weld the kit. But if u notch rember the brake line I cut thru mine lol that added a bit mor time to the work. and u can pull the axle out and get it all painted up nice and purrdy wile ur at it. Also I moved the axle back 3\4 in to center the weel in the well. I had bout a$180.00 in it all together including paint and new brake lines. Hope I helped



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