Sping Eye Pin - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cyclonewade · 10-02-2016, 05:29 PM

Can any give me advice on how to remove the spring eye pins from the rear suspension of a 1951 3/4? I've removed the retaining pins but I'm not seeing how the pins can be removed? I found a clearance hole in the frame and tried to beat the front pin out without any luck. I would like to replace both the spring eye pin and the spring bushings. Picture with arrows attached.

Thanks.

cyclonewade · 10-02-2016, 09:00 PM

Looks like I can use the grease zert threads and some sort of slide hammer according to the service manual.

iowaboynca · 10-02-2016, 11:58 PM

COMPLETELY off topic...

But man, if the 'clones could have got that win

**mr48chev** · 10-03-2016, 12:06 AM

I think this is the same setup. https://www.youtube.com/watch?v=z1A3Z7SmFdI

A good bolt with the same threads as the zerk with something (maybe a ring) welded on the head should work with a slide hammer to pull it out or if you can get to the back side you might be able to drive it out.

tmoble · 10-03-2016, 05:47 AM

Aren't those pins threaded into the bushing in the spring?

http://www.lmctruck.com/icatalog/ca/full.aspx?Page=83

see #8 and #9 IIRC the bushings are threaded inside, the pins have screw threads on the outside to match. the pins have a small tapered spot where the shackles fit. there are nuts on the outside that keep the tapers tight. I think once you have the shackles off you can grab the pins and screw them out. I think I used Vise-Grips. There must be better drawings somewhere.

Jemezcrusher · 10-03-2016, 07:04 AM

They are threaded. Should come out by rotating counter clock wise

cyclonewade · 10-03-2016, 07:54 AM

Quote:

Originally Posted by Jemezcrusher

They are threaded. Should come out by rotating counter clock wise

My truck is a 3/4 ton. According to my reasearch these pins shouldn't be threaded.

cyclonewade · 10-03-2016, 07:55 AM

Quote:

Originally Posted by mr48chev

I think this is the same setup. https://www.youtube.com/watch?v=z1A3Z7SmFdI

A good bolt with the same threads as the zerk with something (maybe a ring) welded on the head should work with a slide hammer to pull it out or if you can get to the back side you might be able to drive it out.

Same setup. I'm just not sure how they slide out without BFH and curse words.

**1957 Chief** · 10-03-2016, 08:02 AM

Pins screw out #4, the bushings #6 will need heat and a BFH.

Bubba

dsraven · 10-03-2016, 08:25 AM

are you replacing the pins and bushings or you just wanna take them apart for some reason? if replacing just take a look at the new stuff, the pin is threaded and unscrews if i remember correctly. if the pin is just smooth possibly cut it off, with a thin zip disc, just inside the bracket next to the spring leaves. then the spring will fall out and you can deal with the rest in a press or at least get a better swing at it and not have to worry about breaking the spring hanger bracket.

dwcsr · 10-03-2016, 12:24 PM

Quote:

Originally Posted by cyclonewade

My truck is a 3/4 ton. According to my reasearch these pins shouldn't be threaded.

Correct. 3/4 and 1 ton are NOT threaded like the 1/2 ton, and come out with a slide hammer screwed into the zerk hole. 3/8-24 bolt will work

**mr48chev** · 10-03-2016, 01:56 PM

If you don't have access to a slide hammer you might be able to get it out using a 3/8 stud with 3/8 24 threads on one end and longer threads on the other end. Screw the stud into the pin, put a large enough socket over the stud so the pin will pull up inside the socket, put washers on it and use a good nut and put the nut on and tighten the nut to pull the pin out. You would have to use a deeper socket or piece of pipe when you pulled it out a ways but you should be able to pull it out that way. You can probably rent/borrow a slide hammer at Autozone though.

cyclonewade · 10-03-2016, 05:24 PM

Quote:

Originally Posted by iowaboynca

COMPLETELY off topic...

But man, if the 'clones could have got that win

Story of my life brother.

cyclonewade · 10-03-2016, 05:27 PM

Thanks for the information everyone. I'll go rent a slide hammer and see if I can remove the pins.

Trekster · 10-03-2016, 06:18 PM

You need to use a punch and a hammer or a porta power and push the pins out from the inside of the frame. There is a hole in the frame for this purpose. A slide hammer rarely works.

tmoble · 10-03-2016, 06:54 PM

Wow, I didn't know 1/2 and 3/4 ton were different.

Good luck with however you try it. If it moves but won't come out try prying or jacking up the spring. sometimes there are lips worn into stuff, can be real hard to get out.

cyclonewade · 10-03-2016, 07:22 PM

Quote:

Originally Posted by Trekster

You need to use a punch and a hammer or a porta power and push the pins out from the inside of the frame. There is a hole in the frame for this purpose. A slide hammer rarely works.

I see the holes, I'll try a bigger hammer! I had a hunch that those holes might be there for that purpose.

**mr48chev** · 10-04-2016, 02:42 PM

You do have that pin #7 in the drawing out? I am sure you do but I have seen guys in the past try to beat pins out that didn't take the retaining pin out first.

I've followed behind far too many that tried to beat the screwed in pins out of the 1/2 ton trucks too.

cyclonewade · 10-04-2016, 08:47 PM

Quote:

Originally Posted by mr48chev

You do have that pin #7 in the drawing out? I am sure you do but I have seen guys in the past try to beat pins out that didn't take the retaining pin out first.

I've followed behind far too many that tried to beat the screwed in pins out of the 1/2 ton trucks too.

Yeah the smaller lock pins have been removed.

**mr48chev** · 10-04-2016, 11:45 PM

Big hammer, big punch, don't hit your thumb.

Jemezcrusher · 10-05-2016, 09:33 PM

Quote:

Originally Posted by mr48chev

Big hammer, big punch, don't hit your thumb.

Guess not an electrical problem eh?

**1957 Chief** · 10-05-2016, 09:56 PM

Quote:

Originally Posted by Jemezcrusher

Guess not an electrical problem eh?

HA HA HA!!! Good one brother!

**mr48chev** · 10-05-2016, 11:03 PM

I do have a pretty decent selection of hammers ranging from an 8 oz ball peen to a 10 lb sledge that is shaped like my 2-1/2 lb machinists hammer that has been my go to bfh for 45 years.

tmoble · 10-06-2016, 07:52 AM

Don't laugh too loud. Back in '84 I tried to beat the kingpins out of my 57. I didn't know about those little tapered pins in there. Half the county learned a bunch of new words that day. Finally pulled the axle, took it to a machine shop. Old timer reached out with his pocket knife scraped the thick built up grease off the pin. Quoth he: "I think you'll have better luck if you take this lock pin out first" oof.

cyclonewade · 10-10-2016, 10:33 AM

A hammer and punch worked the pins out. Thanks for all the ideas.

10-02-2016, 05:29 PM	#1
cyclonewade Registered User Join Date: Nov 2015 Location: Ames Posts: 27	Sping Eye Pin Can any give me advice on how to remove the spring eye pins from the rear suspension of a 1951 3/4? I've removed the retaining pins but I'm not seeing how the pins can be removed? I found a clearance hole in the frame and tried to beat the front pin out without any luck. I would like to replace both the spring eye pin and the spring bushings. Picture with arrows attached. Thanks. Attached Images

10-02-2016, 09:00 PM	#2
cyclonewade Registered User Join Date: Nov 2015 Location: Ames Posts: 27	Re: Sping Eye Pin Looks like I can use the grease zert threads and some sort of slide hammer according to the service manual.

10-02-2016, 11:58 PM	#3
iowaboynca Registered User Join Date: Aug 2012 Location: West Side of the valley, CA Posts: 878	Re: Sping Eye Pin COMPLETELY off topic... But man, if the 'clones could have got that win __________________ Build: "1950" GMC -Charlotte

10-03-2016, 05:47 AM	#5
tmoble Registered User Join Date: Feb 2009 Location: Glendale, Az Posts: 1,062	Re: Sping Eye Pin Aren't those pins threaded into the bushing in the spring? http://www.lmctruck.com/icatalog/ca/full.aspx?Page=83 see #8 and #9 IIRC the bushings are threaded inside, the pins have screw threads on the outside to match. the pins have a small tapered spot where the shackles fit. there are nuts on the outside that keep the tapers tight. I think once you have the shackles off you can grab the pins and screw them out. I think I used Vise-Grips. There must be better drawings somewhere.

10-03-2016, 08:25 AM	#10
dsraven Registered User Join Date: Nov 2010 Location: calgary alberta Posts: 8,344	Re: Sping Eye Pin are you replacing the pins and bushings or you just wanna take them apart for some reason? if replacing just take a look at the new stuff, the pin is threaded and unscrews if i remember correctly. if the pin is just smooth possibly cut it off, with a thin zip disc, just inside the bracket next to the spring leaves. then the spring will fall out and you can deal with the rest in a press or at least get a better swing at it and not have to worry about breaking the spring hanger bracket.

10-03-2016, 12:06 AM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,718	Re: Sping Eye Pin I think this is the same setup. https://www.youtube.com/watch?v=z1A3Z7SmFdI A good bolt with the same threads as the zerk with something (maybe a ring) welded on the head should work with a slide hammer to pull it out or if you can get to the back side you might be able to drive it out. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

10-03-2016, 07:04 AM	#6
Jemezcrusher Registered User Join Date: Nov 2015 Location: Jemez Springs, NM Posts: 435	Re: Sping Eye Pin They are threaded. Should come out by rotating counter clock wise

10-03-2016, 08:02 AM	#9
1957 Chief Senior Member Join Date: Jun 2016 Location: Beebe, AR Posts: 462	Re: Sping Eye Pin Pins screw out #4, the bushings #6 will need heat and a BFH. Bubba

10-03-2016, 01:56 PM	#12
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,718	Re: Sping Eye Pin If you don't have access to a slide hammer you might be able to get it out using a 3/8 stud with 3/8 24 threads on one end and longer threads on the other end. Screw the stud into the pin, put a large enough socket over the stud so the pin will pull up inside the socket, put washers on it and use a good nut and put the nut on and tighten the nut to pull the pin out. You would have to use a deeper socket or piece of pipe when you pulled it out a ways but you should be able to pull it out that way. You can probably rent/borrow a slide hammer at Autozone though. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

10-03-2016, 05:27 PM	#14
cyclonewade Registered User Join Date: Nov 2015 Location: Ames Posts: 27	Re: Sping Eye Pin Thanks for the information everyone. I'll go rent a slide hammer and see if I can remove the pins.

10-03-2016, 06:18 PM	#15
Trekster Registered User Join Date: Feb 2012 Location: Brigham City Utah Posts: 157	Re: Sping Eye Pin You need to use a punch and a hammer or a porta power and push the pins out from the inside of the frame. There is a hole in the frame for this purpose. A slide hammer rarely works.

10-03-2016, 06:54 PM	#16
tmoble Registered User Join Date: Feb 2009 Location: Glendale, Az Posts: 1,062	Re: Sping Eye Pin Wow, I didn't know 1/2 and 3/4 ton were different. Good luck with however you try it. If it moves but won't come out try prying or jacking up the spring. sometimes there are lips worn into stuff, can be real hard to get out.

10-04-2016, 02:42 PM	#18
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,718	Re: Sping Eye Pin You do have that pin #7 in the drawing out? I am sure you do but I have seen guys in the past try to beat pins out that didn't take the retaining pin out first. I've followed behind far too many that tried to beat the screwed in pins out of the 1/2 ton trucks too. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

10-04-2016, 11:45 PM	#20
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,718	Re: Sping Eye Pin Big hammer, big punch, don't hit your thumb. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

10-05-2016, 11:03 PM	#23
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,718	Re: Sping Eye Pin I do have a pretty decent selection of hammers ranging from an 8 oz ball peen to a 10 lb sledge that is shaped like my 2-1/2 lb machinists hammer that has been my go to bfh for 45 years. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.



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10-06-2016, 07:52 AM	#24
tmoble Registered User Join Date: Feb 2009 Location: Glendale, Az Posts: 1,062	Re: Sping Eye Pin Don't laugh too loud. Back in '84 I tried to beat the kingpins out of my 57. I didn't know about those little tapered pins in there. Half the county learned a bunch of new words that day. Finally pulled the axle, took it to a machine shop. Old timer reached out with his pocket knife scraped the thick built up grease off the pin. Quoth he: "I think you'll have better luck if you take this lock pin out first" oof.

10-10-2016, 10:33 AM	#25
cyclonewade Registered User Join Date: Nov 2015 Location: Ames Posts: 27	Re: Sping Eye Pin A hammer and punch worked the pins out. Thanks for all the ideas.

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