Long to short question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kgmunro · 07-17-2012, 06:14 AM

When you cut a long box down to a short box, what do tou do with the trailing arms? Just cut them in the middle somewhere and plate them??

markeb01 · 07-17-2012, 06:23 AM

The trailing arms remain unchanged. The section of frame that is removed is ahead of trailing arm crossmember, so nothing in the suspension is modified.

lucifer · 07-17-2012, 06:59 AM

I found a flat section of frame ahead of the trailing arms and cut out the 12 inches required. Nice square cut and boxed the inside of the frame. The only other part I needed to move was the rear cab mount back 12 inches . Then 8 inches off the rear of the frame.

regards

kgmunro · 07-17-2012, 07:47 AM

Thanks guys, I should look before I ask questions ...

oldsnakebite · 07-18-2012, 04:06 PM

Like the guys before said, trailing arms and cross member stay the same. Just removed the 12 inches in the center and 8 off the back. Then move the cross member forward 12 inches. I did mine years ago, cutting the frame just behind the cab. I have hundreds of pics of the job if you need them.

markeb01 · 07-18-2012, 05:17 PM

I forgot to share this thread which explains the project nicely:

http://67-72chevytrucks.com/vboard/s...d.php?t=123624

07-17-2012, 06:14 AM	#1
kgmunro Registered User Join Date: May 2009 Location: Brandon Manitoba Canada Posts: 342	Long to short question When you cut a long box down to a short box, what do tou do with the trailing arms? Just cut them in the middle somewhere and plate them??

07-17-2012, 06:23 AM	#2
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: Long to short question The trailing arms remain unchanged. The section of frame that is removed is ahead of trailing arm crossmember, so nothing in the suspension is modified. __________________ My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502

07-17-2012, 06:59 AM	#3
lucifer Registered User Join Date: Mar 2010 Location: simcoe ontario canada Posts: 681	Re: Long to short question I found a flat section of frame ahead of the trailing arms and cut out the 12 inches required. Nice square cut and boxed the inside of the frame. The only other part I needed to move was the rear cab mount back 12 inches . Then 8 inches off the rear of the frame. regards __________________ 65 burb On the road Mar 26th Finally

07-17-2012, 07:47 AM	#4
kgmunro Registered User Join Date: May 2009 Location: Brandon Manitoba Canada Posts: 342	Re: Long to short question Thanks guys, I should look before I ask questions ...

07-18-2012, 04:06 PM	#5
oldsnakebite Registered User Join Date: Apr 2012 Location: Rockwall Texas Posts: 38	Re: Long to short question Like the guys before said, trailing arms and cross member stay the same. Just removed the 12 inches in the center and 8 off the back. Then move the cross member forward 12 inches. I did mine years ago, cutting the frame just behind the cab. I have hundreds of pics of the job if you need them. __________________ I have not failed. I’ve just found 10,000 ways that won’t work.

07-18-2012, 05:17 PM	#6
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: Long to short question I forgot to share this thread which explains the project nicely: http://67-72chevytrucks.com/vboard/s...d.php?t=123624 __________________ My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502



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