 Identifying new vs. old ball joints |
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| RiqueMar |
 Feb 4 2010, 10:36 AM
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Enrique Allen Mar  Group: Members Posts: 2,169 Joined: 28-August 08 From: San Diego, CA Member No.: 9,478 Region Association: Southern California 
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I've been told that there is an 'early' and 'late' style design for ball joints, but how can you tell?
I have these pictured below, so they are early because of the half circled notch, correct?  |
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| dr914@autoatlanta.com |
Feb 4 2010, 11:45 AM
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914 Guru Group: Members Posts: 7,864 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
QUOTE(RiqueMar @ Feb 4 2010, 09:36 AM)  I've been told that there is an 'early' and 'late' style design for ball joints, but how can you tell? I have these pictured below, so they are early because of the half circled notch, correct? THAT IS EARLY one 70-the late 72 model year. The late ones have a V notch (rather than the rounded one as pictured) for the tapered roll pin |
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| jaxdream |
Feb 4 2010, 11:56 AM
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Senior Member Group: Members Posts: 974 Joined: 8-July 08 From: North Central Tennessee Member No.: 9,270 Region Association: South East States |
Doc , rephrase your description of the pin , may confuse with what some call a spring pin . It's a wedge pin with a threaded section for securing tthe balljoint stud to the strut housing.
I replaced the aarms on a 94 Ford Probe , they used the bolt / clamp style on the strut bottoms , such as the 72 and earlier 914 , which seems to be what is pictured here. Half moon cut on stud =72 and eariler , V notch on stud = 73 and later .This setup is also used on 911's , providing the use of 911 struts on 914 a arms , just got to match up balljoint studs with the correct strut. Jack / Jaxdream |
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| Cap'n Krusty |
Feb 4 2010, 01:21 PM
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
The switch from the "pinch bolt" design to the "wedge pin" design occurred with the '73
after VIN 919032. There were wear issues, even as early as 3 years old, with strut wear due to the slot in the strut which allowed the pinch bolt to function. The wedge pin struts don't have the slot, and are much stronger. It's difficult to find an early strut that isn't junk. The Cap'n |
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| Gint |
Feb 4 2010, 06:05 PM
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#5
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Mike Ginter Group: Admin Posts: 16,071 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
Check this thread. Post #11 has a diagram with a picture of the late wedge bolt.
http://www.914world.com/bbs2/index.php?showtopic=94096& (IMG:http://www.914world.com/bbs2/uploads/post-9003-1238637134.jpg) |
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| balljoint |
Feb 4 2010, 06:08 PM
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#6
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914 Wizard Group: Members Posts: 10,000 Joined: 6-April 04 Member No.: 1,897 Region Association: None |
Here are some detailed pics....(IMG:style_emoticons/default/smile.gif)
- Admin Edit Seriously Dave, that was disgusting, go back to the sandbox you're not helping. |
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| r_towle |
Feb 4 2010, 07:59 PM
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#7
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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simple...early ball joints SUCK
later ones actually work. Swapped mine out....struts, calipers, rotors etc...all of it. Rich |
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| RiqueMar |
Feb 5 2010, 11:34 AM
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#8
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Enrique Allen Mar Group: Members Posts: 2,169 Joined: 28-August 08 From: San Diego, CA Member No.: 9,478 Region Association: Southern California
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QUOTE(r_towle @ Feb 4 2010, 05:59 PM) simple...early ball joints SUCK later ones actually work. Swapped mine out....struts, calipers, rotors etc...all of it. Rich Besides the ware factor, is there any other reason that the later joints are better? Like performance wise? |
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