4x4 rear springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JJ · 01-16-2003, 11:06 PM

Question#1: Does anyone have any information on changing the spring hangers on the back of a 1972 K2500? I've heard you can turn them over. What does this accomplish?

Question #2: The frame on the back of my newest project does not appear to have the holes for a fuel tank relocation. Is it possible for someone to give me a fairly detailed picture of where the tank is located without the bed on?
Thanks,
JJ

**FRENCHBLUE72** · 01-16-2003, 11:46 PM

The shackle flip gives you some lift colorado k-5 sells a kit for it ..

694X4 · 01-16-2003, 11:54 PM

Just as stated above the shakle flip gives you 4" of lift. You can eather buy it or you can cut your hangers and reinstall the shackle upside down. I don't know about the gas tank relocation kits but I did mine with a 80's something blazer tank and as far as I know it is pretty much a custom job. If it helps i do know that i had to take out the spare tire x-member and I moved my rear x-member back about 2 1/2" then welded in some new pieces and got a strap kit from napa. I think in every thing I had about $50 in it not including the steel which I had laying around. If someone can resize the pics for me I have a couple of after it was all fabed up.

JJ · 01-17-2003, 04:54 AM

Thanks guys, I'm trying to decide if the previous owner cut the frame rails at the rear.

694X4 · 01-17-2003, 07:41 AM

Do you have a picture of it maybe someone can tell from seeing it.

Bob Chayer · 01-17-2003, 09:04 AM

Check out www.offroaddesign.com they make the shackle flip kits and the quality is great. My buddy has them on his longbed GMC and I plan on using them on my burb. It gives 4" of lift and you can use the stock springs without lift blocks and it's cheaper than new springs. Also the have U-bolt flip kits, Xfer case kits and.....

However we found you need to shim the rear diff to bring the pinion angle back in line to avoid vibration.

Hope this helps!

694X4 · 01-17-2003, 09:35 AM

If you do the flip kit make sure you get the relocator shim because if not you axel wont be in the center of the wheel well.

01-16-2003, 11:54 PM	#3
694X4 Registered User Join Date: Jul 2001 Location: utica, oh, Posts: 249	Just as stated above the shakle flip gives you 4" of lift. You can eather buy it or you can cut your hangers and reinstall the shackle upside down. I don't know about the gas tank relocation kits but I did mine with a 80's something blazer tank and as far as I know it is pretty much a custom job. If it helps i do know that i had to take out the spare tire x-member and I moved my rear x-member back about 2 1/2" then welded in some new pieces and got a strap kit from napa. I think in every thing I had about $50 in it not including the steel which I had laying around. If someone can resize the pics for me I have a couple of after it was all fabed up. __________________ 69 3/4 ton 4x4 gmc with 6" sky jacker soft ride. 350 / th350 / 205 work in progress

01-17-2003, 04:54 AM	#4
JJ Lurking Member Join Date: Feb 2000 Location: Forest Grove, OR USA Posts: 196	Thanks guys, I'm trying to decide if the previous owner cut the frame rails at the rear. __________________ JJ 72 GMC 1500 350 4 Speed, stone stock baby!!!!! 72 GMC K-2500 350TPI 700R4 For those who fought for it, Freedom has a flavor the protected will never know.

01-17-2003, 07:41 AM	#5
694X4 Registered User Join Date: Jul 2001 Location: utica, oh, Posts: 249	Do you have a picture of it maybe someone can tell from seeing it. __________________ 69 3/4 ton 4x4 gmc with 6" sky jacker soft ride. 350 / th350 / 205 work in progress

01-17-2003, 09:04 AM	#6
Bob Chayer Registered User Join Date: Dec 2002 Location: Mid, NH Posts: 150	Check out www.offroaddesign.com they make the shackle flip kits and the quality is great. My buddy has them on his longbed GMC and I plan on using them on my burb. It gives 4" of lift and you can use the stock springs without lift blocks and it's cheaper than new springs. Also the have U-bolt flip kits, Xfer case kits and..... However we found you need to shim the rear diff to bring the pinion angle back in line to avoid vibration. Hope this helps! __________________ Bob Chayer 71 3/4 ton 4X4 Suburban

01-17-2003, 09:35 AM	#7
694X4 Registered User Join Date: Jul 2001 Location: utica, oh, Posts: 249	If you do the flip kit make sure you get the relocator shim because if not you axel wont be in the center of the wheel well. __________________ 69 3/4 ton 4x4 gmc with 6" sky jacker soft ride. 350 / th350 / 205 work in progress

01-16-2003, 11:06 PM	#1
JJ Lurking Member Join Date: Feb 2000 Location: Forest Grove, OR USA Posts: 196	4x4 rear springs Question#1: Does anyone have any information on changing the spring hangers on the back of a 1972 K2500? I've heard you can turn them over. What does this accomplish? Question #2: The frame on the back of my newest project does not appear to have the holes for a fuel tank relocation. Is it possible for someone to give me a fairly detailed picture of where the tank is located without the bed on? Thanks, JJ __________________ JJ 72 GMC 1500 350 4 Speed, stone stock baby!!!!! 72 GMC K-2500 350TPI 700R4 For those who fought for it, Freedom has a flavor the protected will never know.

01-16-2003, 11:46 PM	#2
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,600	The shackle flip gives you some lift colorado k-5 sells a kit for it .. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..



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