5" drop and frame notching - The 1947 - Present Chevrolet & GMC Truck Message Board Network

406 Q-ship · 11-08-2010, 01:38 PM

To those you out there that lowered the rear of their trucks 5" (or more) how close is your frame to axle clearance if you did not notch the frame. Did you just make the leap and notch the frame?

I would like to drop my 67 truck 3.5" front and 4-5" rear and in my measurements I come up with 2 3/4" gap between the frame and the axle tube with a 4" drop. I really never liked the idea of cutting the frame on a truck that will have a tow hitch, at least not without alot of frame reinforcement.

Comments....

tantrumpipeline · 11-08-2010, 01:47 PM

don't worry about it with that setup, not sure of the axle clearance but there are plenty of guys running the 4.5/6 drop setup without the c notches even

wannabelow68 · 11-08-2010, 02:44 PM

Quote:

Originally Posted by tantrumpipeline

don't worry about it with that setup, not sure of the axle clearance but there are plenty of guys running the 4.5/6 drop setup without the c notches even

yea im dropped five in the rear and have almost no issues with hitting

68Stepbed · 11-08-2010, 04:15 PM

I'm running a 5" rear drop with no issues except my axle tube hitting the exhaust. That's only because the moron that ran my exhaust was...well.....a moron.

big_al_71 · 11-08-2010, 04:32 PM

Running a 6 inch spring and no notch no problems at all of bottoming out.

72BlckButy · 11-08-2010, 05:52 PM

Quote:

Originally Posted by big_al_71

Running a 6 inch spring and no notch no problems at all of bottoming out.

Agreed.

scrapmetalart · 11-08-2010, 07:01 PM

What does adding a 2" lowering block do for the need to notch when running a 5" or 6" lowered spring?

*mrhino* · 11-08-2010, 08:07 PM

Quote:

Originally Posted by scrapmetalart

What does adding a 2" lowering block do for the need to notch when running a 5" or 6" lowered spring?

i think you would have to notch it if you added a 2" block, that would put you at a 7-8" drop.

406 Q-ship · 11-08-2010, 10:48 PM

Thanks for the response. I talked to Jeff @ CPP and he setting me up with 2.5 drop spindles with 1" drop springs then 4" drop HD springs in the rear. If I want to do the extra 1" in the future I will add a block.

robzilla · 11-08-2010, 11:45 PM

Quote:

Originally Posted by 406 Q-ship

Thanks for the response. I talked to Jeff @ CPP and he setting me up with 2.5 drop spindles with 1" drop springs then 4" drop HD springs in the rear. If I want to do the extra 1" in the future I will add a block.

do mind sending me a pm with rough price for the kit. i'm trying to save up and convince the wife

11-08-2010, 01:38 PM	#1
406 Q-ship Registered User Join Date: Oct 2010 Location: Largo Florida Posts: 632	5" drop and frame notching To those you out there that lowered the rear of their trucks 5" (or more) how close is your frame to axle clearance if you did not notch the frame. Did you just make the leap and notch the frame? I would like to drop my 67 truck 3.5" front and 4-5" rear and in my measurements I come up with 2 3/4" gap between the frame and the axle tube with a 4" drop. I really never liked the idea of cutting the frame on a truck that will have a tow hitch, at least not without alot of frame reinforcement. Comments.... __________________ Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle."

11-08-2010, 01:47 PM	#2
tantrumpipeline Master Procrastinator Join Date: Sep 2009 Location: Grande Prairie AB Canada Posts: 1,128	Re: 5" drop and frame notching don't worry about it with that setup, not sure of the axle clearance but there are plenty of guys running the 4.5/6 drop setup without the c notches even __________________ My Buildhttp://67-72chevytrucks.com/vboard/s...d.php?t=395506 20 Duramax tow pig 68 2wd short stepper project 77 2wd short fleet beater 52 short project

11-08-2010, 04:15 PM	#4
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	Re: 5" drop and frame notching I'm running a 5" rear drop with no issues except my axle tube hitting the exhaust. That's only because the moron that ran my exhaust was...well.....a moron. __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

11-08-2010, 04:32 PM	#5
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: 5" drop and frame notching Running a 6 inch spring and no notch no problems at all of bottoming out. __________________ Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild

11-08-2010, 07:01 PM	#7
scrapmetalart Junior Member Join Date: Mar 2007 Location: DAYTON Posts: 505	Re: 5" drop and frame notching What does adding a 2" lowering block do for the need to notch when running a 5" or 6" lowered spring? __________________ frontstreetcycle on Instagram

11-08-2010, 10:48 PM	#9
406 Q-ship Registered User Join Date: Oct 2010 Location: Largo Florida Posts: 632	Re: 5" drop and frame notching Thanks for the response. I talked to Jeff @ CPP and he setting me up with 2.5 drop spindles with 1" drop springs then 4" drop HD springs in the rear. If I want to do the extra 1" in the future I will add a block. __________________ Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle."

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