Picked up my first 67 and I have some questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

budman k20 · 11-10-2012, 11:10 AM

Hi everyone my name is Bud and I'm a truckaholic. They say the first step is to admit you have a problem! I now own 4.75 of these trucks. I picked up a clean 67 LWB custom yesterday that will be the primary parts donor for my SWB project. My plan is to use a complete 72 front suspension for the PS and disk brakes. I also want to use a 72 rear for the 5 bolt axle flanges. The 67 has a 3.73 posi rear so my question is can I use the posi carrier out of the 67 in the 72 rear? I did search first!

**WIDESIDE72** · 11-10-2012, 02:34 PM

As long as they are both 12 bolts I would swap the complete carrier with ring gear and posi along with the pinion. It will require being re set up hit would save you $ on partsi would check the ring gear and pinion closely and also be sure the posi was OK before swapping.
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**WIDESIDE72** · 11-10-2012, 02:35 PM

Unless you can set up the rear yourself, you might co side inversion axles to switch the 6 lug to 5. That would require a lot less labor. I think they around $300 per pair
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budman k20 · 11-10-2012, 03:09 PM

I have done two other 12 bolt rears that are still working fine so I assume this will be pretty much the same. I have the front and rear axles from a 72 and thought it would be better to use them but maybe a narrow rear has advantages like more options for wheel sizes. So I guess i'm looking for pros and cons to one rear or the other?
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Vintage Windmills · 11-10-2012, 08:28 PM

Bud, lets see some pics! Congrats, was it on craigslist mpls?

budman k20 · 11-11-2012, 10:31 AM

Hi Jud,

Yes it was a CL find. I think it only came up if you put in 1967? It is very complete less engine and trans with 59K miles. The PO knew the original owners family. The body and trim is super straight and solid. Would make a nice patina truck but I want to use my 68 short box that has a wood floor. I will take some pictures this Saturday. I'm even getting indoor heated storage until this spring! I'm just finding out the small difference with the 67 models...fun stuff!

j ripper · 11-11-2012, 11:24 AM

Hi bud, sounds like a cool truck. I bought my first 67 a few months ago. Owning a few 71s in the past I never knew all the little quirks of a 67 till now. All my interest lately has been 67 only!!!

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11-10-2012, 11:10 AM	#1
budman k20 1972 K20 Join Date: Apr 2008 Location: Greenfield MN Posts: 360	Picked up my first 67 and I have some questions Hi everyone my name is Bud and I'm a truckaholic. They say the first step is to admit you have a problem! I now own 4.75 of these trucks. I picked up a clean 67 LWB custom yesterday that will be the primary parts donor for my SWB project. My plan is to use a complete 72 front suspension for the PS and disk brakes. I also want to use a 72 rear for the 5 bolt axle flanges. The 67 has a 3.73 posi rear so my question is can I use the posi carrier out of the 67 in the 72 rear? I did search first!

11-10-2012, 02:34 PM	#2
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: Picked up my first 67 and I have some questions As long as they are both 12 bolts I would swap the complete carrier with ring gear and posi along with the pinion. It will require being re set up hit would save you $ on partsi would check the ring gear and pinion closely and also be sure the posi was OK before swapping. Posted via Mobile Device

11-10-2012, 02:35 PM	#3
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: Picked up my first 67 and I have some questions Unless you can set up the rear yourself, you might co side inversion axles to switch the 6 lug to 5. That would require a lot less labor. I think they around $300 per pair Posted via Mobile Device

11-10-2012, 03:09 PM	#4
budman k20 1972 K20 Join Date: Apr 2008 Location: Greenfield MN Posts: 360	Re: Picked up my first 67 and I have some questions I have done two other 12 bolt rears that are still working fine so I assume this will be pretty much the same. I have the front and rear axles from a 72 and thought it would be better to use them but maybe a narrow rear has advantages like more options for wheel sizes. So I guess i'm looking for pros and cons to one rear or the other? Posted via Mobile Device Posted via Mobile Device

11-10-2012, 08:28 PM	#5
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: Picked up my first 67 and I have some questions Bud, lets see some pics! Congrats, was it on craigslist mpls? __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

11-11-2012, 10:31 AM	#6
budman k20 1972 K20 Join Date: Apr 2008 Location: Greenfield MN Posts: 360	Re: Picked up my first 67 and I have some questions Hi Jud, Yes it was a CL find. I think it only came up if you put in 1967? It is very complete less engine and trans with 59K miles. The PO knew the original owners family. The body and trim is super straight and solid. Would make a nice patina truck but I want to use my 68 short box that has a wood floor. I will take some pictures this Saturday. I'm even getting indoor heated storage until this spring! I'm just finding out the small difference with the 67 models...fun stuff!

11-11-2012, 11:24 AM	#7
j ripper Registered User Join Date: Jul 2010 Location: napa ca. Posts: 199	Re: Picked up my first 67 and I have some questions Hi bud, sounds like a cool truck. I bought my first 67 a few months ago. Owning a few 71s in the past I never knew all the little quirks of a 67 till now. All my interest lately has been 67 only!!! Posted via Mobile Device __________________ edited by staff



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