WIW: posi rear/disc front diffs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WyoRoadDog · 08-25-2006, 07:54 PM

Sorry if this is the wrong spot, didn't seem like it should be in classified, or parts for sale, and 4x4 doesn't seem to see much traffic...
Was poking around the salvage yard today, and found a ~'71 4x4 truck with a disc brake front, and a posi rear (assuming the glove box sticker is correct). I was looking to do a swap from my closed knuckle drum front to a newer disc setup, and thought getting the rear as well from the same truck would save some work on matching gear ratios, then got very excited when I saw it listed as posi (so excited I forgot to check it again and count cover bolts). Question is, how much should I pay for it, and would it work anyway without being a total PITA?
Also what would you pay for a nice, straight, uncut, rust-free driver door?
Thanks in advance for any input, and Josh/Liz/ et al. if this needs to move please do so or let me know.

**special-K** · 08-26-2006, 08:35 AM

I`d offer $250 for the pair,go to $300.If the seller has bigger dreams,tell him you could sink that much into brakes,alone.Not to mention unknown bearing/seal conditions,ball joints,u-joints,and ring & pinion/carrier condition.They ain`t rare and you want`em.He should want your money in his hand.
It won`t be a PITA at all for you.If the drag link is there(arm off of driver`s steering knuckle)get that,too.Chances are it`s adjustable(sleeve in middle)and your`s isn`t.
The door...I`d pay $100-up for,if there`s no rust coloring in the corner seems and no even a dot in the outer corners.I`d go alot more,even,if they are that clean.A stripped door is worth $75,a repro is $250+.Those you need to do alot of work to install the windows and workings.So,you`re always ahead on a complete door.But,I would hold my spending below $175.

shelby987 · 08-26-2006, 08:40 AM

make sure you get the spring plates too! I believe the axle tube on your 67 is going to be a smaller diameter than the tube on the 71, get the spring plates and the u-bolts/hardware if you don't feel like having new bent up for you......this is a lesson I learned the hardway, I believe the older D44's have a 2-3/4" axle tube, and the newer ones (71+) have 3-1/4" tubes.

WyoRoadDog · 08-26-2006, 11:47 AM

Thanks guys! He wanted $200 for the door, which I thought was a little high, but not undo-able. Mine is in good shape, but carved for a speaker (I think they used a butter knife).
He's quoting $700 for the axles (300 front, 400 rear)!

I thought that seemed insane, but don't have a previous experience with them to justify telling him to pound sand.

**PICKMUP** · 08-26-2006, 12:02 PM

I'd say those prices are right on...not a steal, but what they are really worth. That is what they would sell for around here.

Rod · 08-26-2006, 11:12 PM

Doors around here are $100-300. Some people here would pay more for a good orignal door than new repo..the $300 range I'm talkin.. Diffs,,typically 300 for a front 1/2 ton version...3/4 ton sell for more...diff with posi rear.,again $300. I'm talking Canadian $ but it aint much different right now..only about 12%.

meathead95 · 08-27-2006, 10:45 AM

i just picked up a perfect origional 72 door out of a yard for $50. I also just sold a set of axels out of a 72 blazer non posi for $500

**Smitty** · 08-27-2006, 10:59 AM

See if he'll give you a better deal on the package!

WyoRoadDog · 08-27-2006, 11:28 AM

Meathead- Maybe I'll come visit!

Smiity-Exactly what I was thinking, maybe I'll offer $750 for the whole shebang, and haggle from there.

b454rat · 08-27-2006, 12:16 PM

Jees, I think I just sold Dana60 front/70 rear from a 90 dually for $800. 3/4 ton axles are a dime a dozen, that guy must think his stuff is gold or something.

qksilver · 08-27-2006, 11:38 PM

I did a disc swap on my 67 1/2. All I did was use 73-up disc 4x4 set from the steering knuckles out and removed the same from the 67 front end. It all bolted up like it was factory. Saved some money by using the closed knuckle factory 67 axle but with better braking. I am in the process of restoring this truck so issues concerning the strength of the closed knuckles wasn't an issue

08-25-2006, 07:54 PM	#1
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	WIW: posi rear/disc front diffs Sorry if this is the wrong spot, didn't seem like it should be in classified, or parts for sale, and 4x4 doesn't seem to see much traffic... Was poking around the salvage yard today, and found a ~'71 4x4 truck with a disc brake front, and a posi rear (assuming the glove box sticker is correct). I was looking to do a swap from my closed knuckle drum front to a newer disc setup, and thought getting the rear as well from the same truck would save some work on matching gear ratios, then got very excited when I saw it listed as posi (so excited I forgot to check it again and count cover bolts). Question is, how much should I pay for it, and would it work anyway without being a total PITA? Also what would you pay for a nice, straight, uncut, rust-free driver door? Thanks in advance for any input, and Josh/Liz/ et al. if this needs to move please do so or let me know. __________________ 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.

08-26-2006, 08:35 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: WIW: posi rear/disc front diffs I`d offer $250 for the pair,go to $300.If the seller has bigger dreams,tell him you could sink that much into brakes,alone.Not to mention unknown bearing/seal conditions,ball joints,u-joints,and ring & pinion/carrier condition.They ain`t rare and you want`em.He should want your money in his hand. It won`t be a PITA at all for you.If the drag link is there(arm off of driver`s steering knuckle)get that,too.Chances are it`s adjustable(sleeve in middle)and your`s isn`t. The door...I`d pay $100-up for,if there`s no rust coloring in the corner seems and no even a dot in the outer corners.I`d go alot more,even,if they are that clean.A stripped door is worth $75,a repro is $250+.Those you need to do alot of work to install the windows and workings.So,you`re always ahead on a complete door.But,I would hold my spending below $175. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

08-26-2006, 08:40 AM	#3
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	Re: WIW: posi rear/disc front diffs make sure you get the spring plates too! I believe the axle tube on your 67 is going to be a smaller diameter than the tube on the 71, get the spring plates and the u-bolts/hardware if you don't feel like having new bent up for you......this is a lesson I learned the hardway, I believe the older D44's have a 2-3/4" axle tube, and the newer ones (71+) have 3-1/4" tubes. __________________ 1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's 1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM!

08-26-2006, 11:47 AM	#4
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	Re: WIW: posi rear/disc front diffs Thanks guys! He wanted $200 for the door, which I thought was a little high, but not undo-able. Mine is in good shape, but carved for a speaker (I think they used a butter knife). He's quoting $700 for the axles (300 front, 400 rear)! I thought that seemed insane, but don't have a previous experience with them to justify telling him to pound sand. __________________ 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.

08-26-2006, 12:02 PM	#5
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,158	Re: WIW: posi rear/disc front diffs I'd say those prices are right on...not a steal, but what they are really worth. That is what they would sell for around here.

08-26-2006, 11:12 PM	#6
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: WIW: posi rear/disc front diffs Doors around here are $100-300. Some people here would pay more for a good orignal door than new repo..the $300 range I'm talkin.. Diffs,,typically 300 for a front 1/2 ton version...3/4 ton sell for more...diff with posi rear.,again $300. I'm talking Canadian $ but it aint much different right now..only about 12%.

08-27-2006, 10:45 AM	#7
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,440	Re: WIW: posi rear/disc front diffs i just picked up a perfect origional 72 door out of a yard for $50. I also just sold a set of axels out of a 72 blazer non posi for $500 __________________ 72 2wd blazer 72 swb 4x4 Last edited by meathead95; 08-27-2006 at 10:47 AM.

08-27-2006, 10:59 AM	#8
Smitty Senior Member Join Date: Dec 1999 Location: Spring Valley, Ca. Posts: 1,136	Re: WIW: posi rear/disc front diffs See if he'll give you a better deal on the package! __________________ Smitty '71 Short Fleetside Spring Valley, Ca.

08-27-2006, 11:28 AM	#9
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	Re: WIW: posi rear/disc front diffs Meathead- Maybe I'll come visit! Smiity-Exactly what I was thinking, maybe I'll offer $750 for the whole shebang, and haggle from there. __________________ 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.

08-27-2006, 12:16 PM	#10
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: WIW: posi rear/disc front diffs Jees, I think I just sold Dana60 front/70 rear from a 90 dually for $800. 3/4 ton axles are a dime a dozen, that guy must think his stuff is gold or something. __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS

08-27-2006, 11:38 PM	#11
qksilver Senior Member Join Date: Dec 2004 Location: Southern Pines NC Posts: 3,853	Re: WIW: posi rear/disc front diffs I did a disc swap on my 67 1/2. All I did was use 73-up disc 4x4 set from the steering knuckles out and removed the same from the 67 front end. It all bolted up like it was factory. Saved some money by using the closed knuckle factory 67 axle but with better braking. I am in the process of restoring this truck so issues concerning the strength of the closed knuckles wasn't an issue



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