67/68 suspension difference from 69/72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**rgreathouse** · 04-02-2010, 11:40 PM

What is the difference in the frame and or suspension on 67 and 68's from 69-72's?

I see some lift kits that are only for 69-72 4x4. Also the DIY4x.com fgb52 says it is made for 69-72 chevys.

So what is different? Or will everything fit the same?

Thank you

Robert

**rgreathouse** · 04-03-2010, 12:39 PM

anyone? I am thinking about buying a 68' chassis and would like to know if the fgb52 will work?

1969K10 · 04-03-2010, 09:33 PM

my understanding is that the '68 springs were wider. you might be able to modify your bushings to fit. I think the '67 was diffrerent still, but not sure why.

**rgreathouse** · 04-04-2010, 01:32 AM

I have researched and found that some people say 67-68 leafs taper from 3" to 2.5" on the axle perch to 3" to the shakle. If this is so I am assuming the frame it self is the same but the spring hangers are different.

Is this correct?

Thank You

Robert

bigbadchev72 · 04-10-2010, 01:31 PM

the steering arm is totally different as well and the gear box too. I have a 67 that has the 69-72 6" leafs on it with a newer steering box(69-91) and 78' 1/2 ton axles.

WyoRoadDog · 04-10-2010, 04:51 PM

If you're doing the FGB52 kit, you're changing the springs on the front, correct? If so, then you can put whatever springs you want on there. The only thing to watch there would be the matching the spring perches on the axle, but I don't think that is an issue, I used lift springs for a 69-72 on the front with no problems.
The rear is where the real difference is, the springs are a different width and pin location, at least on the '67, and I think most '68's as well. If you're dealing with Kert at DIY4X already, he'll customize any of his stuff for you. He modified the shackle flip I put on the rear of my '67 without any hesitation.
Hope this helps.
-Finding my notes, here's what I have as measurements from my '67:
Front springs 3" wide at eyes, 2 1/2" at spring perch, 44" eye to eye.
Rear springs 3" wide at eyes, 2 1/2 at spring perch, 56" eye to eye, CENTER pin.

**68SWB4x4** · 04-13-2010, 05:23 PM

Frame is the same expect it is not dimpled for p/s most likely. I did the FGB52 kit on my 68 suburban.

link to build thread.

http://www.67-72chevytrucks.com/vboa...d.php?t=312252

Mr-Jack · 04-13-2010, 05:39 PM

Quote:

Originally Posted by WyoRoadDog

If you're doing the FGB52 kit, you're changing the springs on the front, correct? If so, then you can put whatever springs you want on there. The only thing to watch there would be the matching the spring perches on the axle, but I don't think that is an issue, I used lift springs for a 69-72 on the front with no problems.
The rear is where the real difference is, the springs are a different width and pin location, at least on the '67, and I think most '68's as well. If you're dealing with Kert at DIY4X already, he'll customize any of his stuff for you. He modified the shackle flip I put on the rear of my '67 without any hesitation.
Hope this helps.
-Finding my notes, here's what I have as measurements from my '67:
Front springs 3" wide at eyes, 2 1/2" at spring perch, 44" eye to eye.
Rear springs 3" wide at eyes, 2 1/2 at spring perch, 56" eye to eye, CENTER pin.

what had to be modified on your shackle flip?

WyoRoadDog · 04-13-2010, 10:31 PM

The stock springs on the '67 are wider than the 69-72, so I had Kert make the shackle wider to accommodate them, and he welded on a spacer to the other side to match his bracket. Easier than having the bracket made a custom width.

Mr-Jack · 04-13-2010, 10:58 PM

gotcha...i went a little differant route with my planning, but it all works out the same

04-02-2010, 11:40 PM	#1
rgreathouse Registered User Join Date: Dec 2004 Location: jackson,ca Posts: 488	67/68 suspension difference from 69/72 What is the difference in the frame and or suspension on 67 and 68's from 69-72's? I see some lift kits that are only for 69-72 4x4. Also the DIY4x.com fgb52 says it is made for 69-72 chevys. So what is different? Or will everything fit the same? Thank you Robert __________________ 1972 c10,2wd,long bed,250,4spd----> 1972 SWB Fleetside 4x4 12v Cummins build thread http://67-72chevytrucks.com/vboard/s...d.php?t=513791

04-03-2010, 12:39 PM	#2
rgreathouse Registered User Join Date: Dec 2004 Location: jackson,ca Posts: 488	Re: 67/68 suspension difference from 69/72 anyone? I am thinking about buying a 68' chassis and would like to know if the fgb52 will work? __________________ 1972 c10,2wd,long bed,250,4spd----> 1972 SWB Fleetside 4x4 12v Cummins build thread http://67-72chevytrucks.com/vboard/s...d.php?t=513791

04-03-2010, 09:33 PM	#3
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: 67/68 suspension difference from 69/72 my understanding is that the '68 springs were wider. you might be able to modify your bushings to fit. I think the '67 was diffrerent still, but not sure why. __________________ 1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current 1969 K20 - V8, 465, 221, Eaton, D44 2012-current Nothin' but drums on all 4 corners! past horses in the stable 72 C10-short step (97-02), 68 C10-long fleet (06-12)

04-04-2010, 01:32 AM	#4
rgreathouse Registered User Join Date: Dec 2004 Location: jackson,ca Posts: 488	Re: 67/68 suspension difference from 69/72 I have researched and found that some people say 67-68 leafs taper from 3" to 2.5" on the axle perch to 3" to the shakle. If this is so I am assuming the frame it self is the same but the spring hangers are different. Is this correct? Thank You Robert __________________ 1972 c10,2wd,long bed,250,4spd----> 1972 SWB Fleetside 4x4 12v Cummins build thread http://67-72chevytrucks.com/vboard/s...d.php?t=513791

04-10-2010, 01:31 PM	#5
bigbadchev72 People know me Join Date: Jun 2007 Location: Hermiston, oregon Posts: 840	Re: 67/68 suspension difference from 69/72 the steering arm is totally different as well and the gear box too. I have a 67 that has the 69-72 6" leafs on it with a newer steering box(69-91) and 78' 1/2 ton axles. __________________ 1972 k/5 blazer CST 4X4 Crate 350, th350/205, dana44with trac-loc/14 bolt with detroit locker, 4 wheel discs 4.56s, 8" suspension lift using 73-87springs, 1" zerorate custom front crossmember, HAD CV drivelines and driveshaft e-brake, full cage, PRP seats, Full autometer gauges, 38x14.5x16 Toyo M/Ts, 16x10 Polished aluminum rockcrusher wheels 1967 longbox 4x4, Strong 400/400/208, 44/12bolt 4.10s, 6" lift, 35" Toyo M/Ts on corvette rally wheels

04-10-2010, 04:51 PM	#6
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	Re: 67/68 suspension difference from 69/72 If you're doing the FGB52 kit, you're changing the springs on the front, correct? If so, then you can put whatever springs you want on there. The only thing to watch there would be the matching the spring perches on the axle, but I don't think that is an issue, I used lift springs for a 69-72 on the front with no problems. The rear is where the real difference is, the springs are a different width and pin location, at least on the '67, and I think most '68's as well. If you're dealing with Kert at DIY4X already, he'll customize any of his stuff for you. He modified the shackle flip I put on the rear of my '67 without any hesitation. Hope this helps. -Finding my notes, here's what I have as measurements from my '67: Front springs 3" wide at eyes, 2 1/2" at spring perch, 44" eye to eye. Rear springs 3" wide at eyes, 2 1/2 at spring perch, 56" eye to eye, CENTER pin. __________________ 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. Last edited by WyoRoadDog; 04-10-2010 at 04:54 PM. Reason: more info.

04-13-2010, 05:23 PM	#7
68SWB4x4 Strongman Garage Join Date: Apr 2000 Location: Salinas, CA Posts: 10,241	Re: 67/68 suspension difference from 69/72 Frame is the same expect it is not dimpled for p/s most likely. I did the FGB52 kit on my 68 suburban. link to build thread. http://www.67-72chevytrucks.com/vboa...d.php?t=312252 __________________ Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE

04-13-2010, 10:31 PM	#9
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	Re: 67/68 suspension difference from 69/72 The stock springs on the '67 are wider than the 69-72, so I had Kert make the shackle wider to accommodate them, and he welded on a spacer to the other side to match his bracket. Easier than having the bracket made a custom width. __________________ 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.

04-13-2010, 10:58 PM	#10
Mr-Jack Beer Drink'n Knuckle Dragger Join Date: Mar 2010 Location: Eatonville, WA Posts: 493	Re: 67/68 suspension difference from 69/72 gotcha...i went a little differant route with my planning, but it all works out the same __________________ GOD BLESS MY BROTHERS & SISTERS THAT SERVE WITH US *- 67 GMC Long-Wide* *350/SM420* *My BACON Wrapped Meatloaf Recipe*



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