The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - questions about my 68 k-20 and lifting it

WyoRoadDog · 11-18-2008, 01:06 PM

+1 to msgross.
From what I have found/understand, the 67-68 frames use a longer and wider rear spring, and with a different pin position as well. The front springs are not a problem, you can use a 69-72 lifted front spring. But, if you don't want to do a block lift in back, or custom springs, about the only option is a shackle flip.
I am using a set of 4" lift springs in front and a DIY4X first gen shackle flip on the rear with the stock springs. I had Kert at DIY build a set of wider cross tied shackles for the rear, to mate to my springs, with spacers on the other side to mount to the shackle flip. Here's a pic.

11-18-2008, 01:06 PM	#6
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	Re: questions about my 68 k-20 and lifting it +1 to msgross. From what I have found/understand, the 67-68 frames use a longer and wider rear spring, and with a different pin position as well. The front springs are not a problem, you can use a 69-72 lifted front spring. But, if you don't want to do a block lift in back, or custom springs, about the only option is a shackle flip. I am using a set of 4" lift springs in front and a DIY4X first gen shackle flip on the rear with the stock springs. I had Kert at DIY build a set of wider cross tied shackles for the rear, to mate to my springs, with spacers on the other side to mount to the shackle flip. Here's a pic. Attached Images __________________ There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.There is another theory which states that this has already happened. - Douglas Adams '67 GMC 4x4, 305 V6! Or all the parts for anyway... '17 Subaru Outback. '18 Toyota Tacoma TRD Off Road. '99 Ducati 900SS.