Did GM make a C 20 coil spring Dana 60 67-72? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

weim55 · 09-09-2019, 11:43 PM

All I’m finding are leaf spring Dana 60s. Does a coil spring version of this exist for a three-quarter ton??

Steve weim55 Colorado

**kwmech** · 09-10-2019, 01:26 AM

Yes they do, kinda rare. Majority of the coil rears were HO52. Even some of the parts books at NAPA distinguish between coil and leaf for rear diff application of brake parts

**Curtb1971** · 09-10-2019, 01:38 AM

Most coil dana60's were found in big block trucks and suburbans with 3:54 ratios. Definitely uncommon

**special-K** · 09-10-2019, 06:52 AM

^^^ The BBC/TH400 combo that came through with 3.54:1 ratio is the only Dana60/coil application I know of. And that is only because that ratio wasn't available in corporate rears.

weim55 · 09-10-2019, 10:57 AM

Quote:

Originally Posted by Curtb1971

Most coil dana60's were found in big block trucks and suburbans with 3:54 ratios. Definitely uncommon

Perfect, is that the one you want to sell me ??

Steve weim55 Colorado

**Curtb1971** · 09-10-2019, 11:08 AM

Quote:

Originally Posted by weim55

Perfect, is that the one you want to sell me ??

Steve weim55 Colorado

Sorry Steve, this rear should be living life in Kentucky soon.

**LockDoc** · 09-10-2019, 11:51 AM

-
I think I have one under a '72 GMC frame. I stuck it under the frame so it didn't have to sit on the ground and set a cab and bed on the frame so they didn't have to sit on the ground. I remember it wouldn't bolt up to the GMC leaf springs because the perches were on an angle. No pictures of it though.

LockDoc

**DA71Grande** · 09-10-2019, 01:29 PM

I’m guessing that mine is the Dana 60.. 3/4 bb with th400

**kwmech** · 09-10-2019, 01:39 PM

That is a 60

Castle09 · 09-11-2019, 02:12 AM

Quote:

Originally Posted by Curtb1971

Sorry Steve, this rear should be living life in Kentucky soon.

How much is shipping something that heavy?

Aus69c20 · 09-11-2019, 07:53 AM

I have one.
69, big block, th400, 3.54 gears.

02-11-2020, 08:48 PM

I searched long and hard to find a coil spring Dana 60. It just showed up today. I stumbled upon it on Facebook Marketplace and had it shipped from Colorado. They weren’t able to tell me the gear ratio before it was shipped so i was pretty happy to find that it was a 3.54 when it got here today.
👍
I’ll be going through it and adding a posi before it goes in the truck.

**special-K** · 02-12-2020, 08:22 PM

Congratulations! I stumbled on one that way. The guy said he wasn't sure of the ratio, but the truck was a 396/TH400. He didn't need to check. I knew it would be a 3.54.

**kwmech** · 02-12-2020, 10:19 PM

Good chance of it having a power-loc posi. You'll know when you pull the cover

**Cali72K20** · 02-12-2020, 11:00 PM

I posted the SPID in another post but my 72 C20 has a coil spring Dana 60 with 402/400 combo, that was the only reason I bought it, want to turn it into a Hotrod Cowboy Cadillac

littlehopper · 02-15-2020, 05:20 PM

Curious about how much one is worth and rough idea on shipping?

Quote:

Originally Posted by letsgofast

I searched long and hard to find a coil spring Dana 60. It just showed up today. I stumbled upon it on Facebook Marketplace and had it shipped from Colorado. They weren’t able to tell me the gear ratio before it was shipped so i was pretty happy to find that it was a 3.54 when it got here today.
👍
I’ll be going through it and adding a posi before it goes in the truck.

02-18-2020, 12:41 AM

Quote:

Originally Posted by littlehopper

Curious about how much one is worth and rough idea on shipping?

I believe shipping was under $200 from Denver to just north of Seattle. I am into this for over $850 and I haven't taken it off of the pallet yet. It was this or convert to 1/2 ton axles. I really like my C20. I didn't want to change that part of the truck. I might someday if I want to really hotrod the truck but I doubt that will happen.

72highlander · 02-18-2020, 04:26 PM

Learn something new every day. Appears that’s what my 72 3/4 big block truck has

06-02-2020, 09:14 AM

Well,, this has been a long and expensive project. If you are thinking of swapping to a Dana 60 rear for your coil sprung truck, start saving. I really don’t know what other options I had to get this truck to something higher than 4.10 years.
I’m not unhappy, just tired of spending money and ready to drive it again. I pick up the driveshaft today and should be cruising tonight.

Junkyard rear end with freight $875
Machine shop to build new track bar pin that was broken on housing $275
Randy’s Ring and Pinion for a rebuild with new posi. $2300 (Inside of housing was damaged and had to be machined on the bearing surface. This cost me an extra $300)
Brakes and lines $400
Track bar and mount $100?
Shorten driveshaft, carrier bearing, joints $400

Total without misc items that I forgot about. $4,300

I will have to get my tailpipes reworked. I had to remove them because the track bar location is different on the is housing. Being lowered 6” makes it really tight above the axle tubes. I am scheduled at the muffler shop tomorrow. I guess that’s another couple hundred.

Good luck.

Carnut6870 · 06-02-2020, 10:26 AM

I have a dana 60 and i'm wondering if it came out of a trailing arm/coil spring truck. The track bar doesn't mount to the center section. It has a bracket on the right axle tube. The brackets for the trailing arms are different as well. I checked and a U bolt will fit in them like you are mounting it to a trailing arm. Wish I could upload images of it.

06-02-2020, 10:37 AM

Quote:

Originally Posted by Carnut6870

I have a dana 60 and i'm wondering if it came out of a trailing arm/coil spring truck. The track bar doesn't mount to the center section. It has a bracket on the right axle tube. The brackets for the trailing arms are different as well. I checked and a U bolt will fit in them like you are mounting it to a trailing arm. Wish I could upload images of it.

I'm going to send you a message.

09-09-2019, 11:43 PM	#1
weim55 Registered User Join Date: Jan 2017 Location: Larkspur, Colorado Posts: 904	Did GM make a C 20 coil spring Dana 60 67-72? All I’m finding are leaf spring Dana 60s. Does a coil spring version of this exist for a three-quarter ton?? Steve weim55 Colorado

09-10-2019, 01:26 AM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,388	Re: Did GM make a C 20 coil spring Dana 60 67-72? Yes they do, kinda rare. Majority of the coil rears were HO52. Even some of the parts books at NAPA distinguish between coil and leaf for rear diff application of brake parts

09-10-2019, 01:38 AM	#3
Curtb1971 Senior Member Join Date: Feb 2014 Location: Erie Colorado Posts: 1,007	Re: Did GM make a C 20 coil spring Dana 60 67-72? Most coil dana60's were found in big block trucks and suburbans with 3:54 ratios. Definitely uncommon Attached Images __________________ 1971 LSX "Bonnie" build thread http://67-72chevytrucks.com/vboard/s....php?p=8026381 paypal is curtbarton1971@yahoo.com

09-10-2019, 06:52 AM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,862	Re: Did GM make a C 20 coil spring Dana 60 67-72? ^^^ The BBC/TH400 combo that came through with 3.54:1 ratio is the only Dana60/coil application I know of. And that is only because that ratio wasn't available in corporate rears. __________________ "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 ~

09-10-2019, 11:51 AM	#7
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,321	Re: Did GM make a C 20 coil spring Dana 60 67-72? - I think I have one under a '72 GMC frame. I stuck it under the frame so it didn't have to sit on the ground and set a cab and bed on the frame so they didn't have to sit on the ground. I remember it wouldn't bolt up to the GMC leaf springs because the perches were on an angle. No pictures of it though. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

09-10-2019, 01:29 PM	#8
DA71Grande Senior Member Join Date: Aug 2018 Location: Liberty Twp, Ohio Posts: 333	Re: Did GM make a C 20 coil spring Dana 60 67-72? I’m guessing that mine is the Dana 60.. 3/4 bb with th400 Attached Images __________________ Doug 71 Sierra Grande C25 16 Sierra 2500HD All Terrain 23 Chevy Tahoe Z71 https://paypal.me/digdug7131?locale.x=en_US

09-10-2019, 01:39 PM	#9
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,388	Re: Did GM make a C 20 coil spring Dana 60 67-72? That is a 60

09-11-2019, 07:53 AM	#11
Aus69c20 Registered User Join Date: Jun 2015 Location: Melbourne, Australia Posts: 231	Re: Did GM make a C 20 coil spring Dana 60 67-72? I have one. 69, big block, th400, 3.54 gears. __________________ John 69 c20, 396, th400, dana60, ps, ac

02-11-2020, 08:48 PM	#12
letsgofast Guest Posts: n/a	Re: Did GM make a C 20 coil spring Dana 60 67-72? I searched long and hard to find a coil spring Dana 60. It just showed up today. I stumbled upon it on Facebook Marketplace and had it shipped from Colorado. They weren’t able to tell me the gear ratio before it was shipped so i was pretty happy to find that it was a 3.54 when it got here today. 👍 I’ll be going through it and adding a posi before it goes in the truck. Attached Images

02-12-2020, 08:22 PM	#13
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,862	Re: Did GM make a C 20 coil spring Dana 60 67-72? Congratulations! I stumbled on one that way. The guy said he wasn't sure of the ratio, but the truck was a 396/TH400. He didn't need to check. I knew it would be a 3.54. __________________ "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 ~

02-12-2020, 10:19 PM	#14
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,388	Re: Did GM make a C 20 coil spring Dana 60 67-72? Good chance of it having a power-loc posi. You'll know when you pull the cover

02-12-2020, 11:00 PM	#15
Cali72K20 Senior Member Join Date: Aug 2013 Location: Northern Santa Barbara County, California Posts: 2,673	Re: Did GM make a C 20 coil spring Dana 60 67-72? I posted the SPID in another post but my 72 C20 has a coil spring Dana 60 with 402/400 combo, that was the only reason I bought it, want to turn it into a Hotrod Cowboy Cadillac Attached Images

02-18-2020, 04:26 PM	#18
72highlander Sophomore Member Join Date: Jul 2006 Location: brownwood, tx Posts: 927	Re: Did GM make a C 20 coil spring Dana 60 67-72? Learn something new every day. Appears that’s what my 72 3/4 big block truck has Attached Images __________________ 1972 Chevrolet Highlander SWB 1972 Custom Deluxe 3/4 2WD 60k miles these trucks don't need vacuum gauges cause they don't suck! two wrongs don't make a right, but three rights do make a left all i want is a little more than i'll ever get it's better to be judged by 12 than to be carried by 6

06-02-2020, 09:14 AM	#19
letsgofast Guest Posts: n/a	Re: Did GM make a C 20 coil spring Dana 60 67-72? Well,, this has been a long and expensive project. If you are thinking of swapping to a Dana 60 rear for your coil sprung truck, start saving. I really don’t know what other options I had to get this truck to something higher than 4.10 years. I’m not unhappy, just tired of spending money and ready to drive it again. I pick up the driveshaft today and should be cruising tonight. Junkyard rear end with freight $875 Machine shop to build new track bar pin that was broken on housing $275 Randy’s Ring and Pinion for a rebuild with new posi. $2300 (Inside of housing was damaged and had to be machined on the bearing surface. This cost me an extra $300) Brakes and lines $400 Track bar and mount $100? Shorten driveshaft, carrier bearing, joints $400 Total without misc items that I forgot about. $4,300 I will have to get my tailpipes reworked. I had to remove them because the track bar location is different on the is housing. Being lowered 6” makes it really tight above the axle tubes. I am scheduled at the muffler shop tomorrow. I guess that’s another couple hundred. Good luck. Attached Images

06-02-2020, 10:26 AM	#20
Carnut6870 Registered User Join Date: Jul 2016 Location: Knoxville TN Posts: 2	Re: Did GM make a C 20 coil spring Dana 60 67-72? I have a dana 60 and i'm wondering if it came out of a trailing arm/coil spring truck. The track bar doesn't mount to the center section. It has a bracket on the right axle tube. The brackets for the trailing arms are different as well. I checked and a U bolt will fit in them like you are mounting it to a trailing arm. Wish I could upload images of it.



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