Lowering leaf spring trucks ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69lemans · 03-17-2009, 02:44 PM

Whats the difference in leaf spring rears on 67-72 trucks versus 73-up trucks? I see rear axle flip kits for the 73 trucks,but none for 72 trucks.Does anybody have a pictre of a 72 truck with just the extended shackles that lower about 2"? What if you use the shackles and take one leaf out of the springs,how much difference would that make? Thanks

rockabillyrat · 03-17-2009, 07:28 PM

i was wondering the same thing for the most part. i just picked up a 72 and with a love for slammed trucks i am looking to lower it. i frame offed and bagged my 92 s10 but with my c10 im looking to stay away form air so it can be my daily and to save money. i was wondering about leaf spring set up in the rear to lower. i have hd springs in mine so i was thinking of doing shakles and removing a leaf. has any one tried this. how much lower did it go. and did you have to notch the frame. im tring to stay away from notching. i have the welder steel and skills to do it im just not sure i want to on my daily. i need a number so i know how much to lower the front.

slow72 · 03-18-2009, 10:47 PM

My 72 is also on leafs and i've seen pictures of this kit installed on a 73 and newer truck.

http://store.summitracing.com/partde...5&autoview=sku

I assume it must fit the 67-72 as well but i'm not sure. Anyone know?

duceducenine · 03-19-2009, 11:08 AM

heres the one i used djm suspension flip kit
http://www.djmsuspension.com/Instruc...p/FK1012-5.pdf

slow72 · 03-19-2009, 11:30 AM

Thanks alot thats exactly what i was looking for. How much did it lower your truck? Was it 5 inches?

chevydog66 · 03-19-2009, 10:18 PM

I used lowering shackles and removed 1 leaf from my 72 GMC, and it dropped about 3 1/2".

duceducenine · 03-20-2009, 08:54 PM

Quote:

Originally Posted by slow72

Thanks alot thats exactly what i was looking for. How much did it lower your truck? Was it 5 inches?

dont remember exactly too long ago but around 5"

falvarez12001 · 03-23-2009, 12:48 PM

C-dog, does it matter which leaf spring you remove top, bottom midle. I have a 71 longhorn with 4 inch drop leaf springs, and I installed the drop shackles, but I need to drop the rear just a little more to achive the look that I want. I still have room, the truck has not bottomed out with a load. I have swaped out the bump stops for the button kind. So it looks like a still have about two to 3 inches.

chevydog66 · 03-23-2009, 02:46 PM

The top one, I think it's called the overload spring, it should get you about 1-2".

03-17-2009, 02:44 PM	#1
69lemans Registered User Join Date: Aug 2008 Location: simpsonville,sc Posts: 417	Lowering leaf spring trucks ? Whats the difference in leaf spring rears on 67-72 trucks versus 73-up trucks? I see rear axle flip kits for the 73 trucks,but none for 72 trucks.Does anybody have a pictre of a 72 truck with just the extended shackles that lower about 2"? What if you use the shackles and take one leaf out of the springs,how much difference would that make? Thanks

03-17-2009, 07:28 PM	#2
rockabillyrat Registered User Join Date: Mar 2009 Location: Seville Ohio Posts: 14	Re: Lowering leaf spring trucks ? i was wondering the same thing for the most part. i just picked up a 72 and with a love for slammed trucks i am looking to lower it. i frame offed and bagged my 92 s10 but with my c10 im looking to stay away form air so it can be my daily and to save money. i was wondering about leaf spring set up in the rear to lower. i have hd springs in mine so i was thinking of doing shakles and removing a leaf. has any one tried this. how much lower did it go. and did you have to notch the frame. im tring to stay away from notching. i have the welder steel and skills to do it im just not sure i want to on my daily. i need a number so i know how much to lower the front.

03-18-2009, 10:47 PM	#3
slow72 Registered User Join Date: Sep 2008 Location: Regina, Saskatchewan Posts: 43	Re: Lowering leaf spring trucks ? My 72 is also on leafs and i've seen pictures of this kit installed on a 73 and newer truck. http://store.summitracing.com/partde...5&autoview=sku I assume it must fit the 67-72 as well but i'm not sure. Anyone know? __________________ 1972 GMC LWB, 250, 4sp 2010 GMC Sierra 6.6 CCSB

03-19-2009, 11:08 AM	#4
duceducenine Registered User Join Date: Nov 2006 Location: el sobrante CA 94803 Posts: 284	Re: Lowering leaf spring trucks ? heres the one i used djm suspension flip kit http://www.djmsuspension.com/Instruc...p/FK1012-5.pdf Last edited by duceducenine; 03-19-2009 at 11:08 AM.

03-19-2009, 11:30 AM	#5
slow72 Registered User Join Date: Sep 2008 Location: Regina, Saskatchewan Posts: 43	Re: Lowering leaf spring trucks ? Thanks alot thats exactly what i was looking for. How much did it lower your truck? Was it 5 inches? __________________ 1972 GMC LWB, 250, 4sp 2010 GMC Sierra 6.6 CCSB

03-19-2009, 10:18 PM	#6
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Lowering leaf spring trucks ? I used lowering shackles and removed 1 leaf from my 72 GMC, and it dropped about 3 1/2". __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up

03-23-2009, 12:48 PM	#8
falvarez12001 Registered User Join Date: Sep 2006 Location: San Antonio , TX Posts: 140	Re: Lowering leaf spring trucks ? C-dog, does it matter which leaf spring you remove top, bottom midle. I have a 71 longhorn with 4 inch drop leaf springs, and I installed the drop shackles, but I need to drop the rear just a little more to achive the look that I want. I still have room, the truck has not bottomed out with a load. I have swaped out the bump stops for the button kind. So it looks like a still have about two to 3 inches. __________________ Why, Because it's my truck 1972 Chevy Longhorn, Dropped 4-7 1984 Chevy Shortbed custom Deluxe (Daily Driver)

03-23-2009, 02:46 PM	#9
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Lowering leaf spring trucks ? The top one, I think it's called the overload spring, it should get you about 1-2". __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up



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