Author Topic: 67 spring perch bushing crimping  (Read 580 times)

Offline Jaybart68

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67 spring perch bushing crimping
« on: March 18, 2020, 03:36:45 PM »
Hi, does anyone have a tip on how to duplicate the crimping of the spring perch bushing? I've managed to find some original 67 spring perches and the rubber in the bushings is perished. I sourced replacement bushings from NPD, managed to get the old ones out and the new one in. Now if I can find a way to get the crimp in I'm home ...  ;D
Jay Barthel

1967 (12/22/66, Dearborn GT Fastback, 390-4V, DSO 41, 4 speed manual, standard black interior, ext. Decor, Raven Black, +options)

1967 eight barrel

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Re: 67 spring perch bushing crimping
« Reply #1 on: March 18, 2020, 04:29:05 PM »
The bushings aren't crimped. They are press-fit into the eye. Are you talking about the bands?

Offline 67gta289

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Re: 67 spring perch bushing crimping
« Reply #2 on: March 18, 2020, 04:46:33 PM »
I think he is asking about these.

I carefully pried these open to remove the old bushing, then pressed in the new bushings, and then used a hammer with a square drift to close the crimps back in.
« Last Edit: March 18, 2020, 04:49:06 PM by 67gta289 »
John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660

1967 eight barrel

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Re: 67 spring perch bushing crimping
« Reply #3 on: March 18, 2020, 04:48:54 PM »
Okay, now I understand.

Offline Bossbill

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Re: 67 spring perch bushing crimping
« Reply #4 on: March 18, 2020, 05:29:18 PM »
The fold overs can be painful to remove.
I used a very small ball burr and a high speed grinder to get to the inside of the bend (in the rubber section). This weakened the tab so that it folded inward easily.
I noticed that my tabs weren't just flat punched but looked like slits were made into the bushings.
I don't think slits were actually pre-made, but the machine that originally pressed the folds into the metal produced enough force for the metal in both pieces to split.
So I cut some slits with a dremel and this worked pretty well. It did require a lot of pre-measuring.
Next time I'll try John's method!
Bill
Concours  Actual Ford Build 3/2/67 GT350 01375
Driven      6/6/70 0T02G160xxx Boss 302
Modified   5/18/65 5F09A728xxx Boss 347 Terminator-X 8-Stack
Race        65 2+2 Coupe conversion

Offline Jaybart68

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Re: 67 spring perch bushing crimping
« Reply #5 on: March 18, 2020, 05:46:53 PM »
Excellent to hear that a hammer and a punch can do the trick. I'll give that a try.
Jay Barthel

1967 (12/22/66, Dearborn GT Fastback, 390-4V, DSO 41, 4 speed manual, standard black interior, ext. Decor, Raven Black, +options)