1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year > 1967 Mustang
Correct rear shackles for 1968 dual exhaust car?
ramblewood390GT:
I need to get a set of rear shackles for a 1968 GT car with dual exhaust. What would you recommend as the most correct among the new production stuff?
Bob Gaines:
--- Quote from: ramblewood390GT on December 05, 2017, 05:20:37 PM ---I need to get a set of rear shackles for a 1968 GT car with dual exhaust. What would you recommend as the most correct among the new production stuff?
--- End quote ---
Good question . I have seen the special duel exhaust shackle for the driver side only sold separately and not part of a matching set . It is only similar in appearance compared to a original. Big surprise. That special one that is made staggered doesn't match the standard side sold separately in materials and over all appearance. That was NPD. Maybe other dealers have different. Hopefully someone else has had better luck. I made my own using originals as donor parts rather then waste anymore time. FYI you need two good used ones (pre 1970 style) to make one duel exhaust staggered shackle. You press out one shaft from each of two separate shackles . You fit together the two one shaft half's for a complete look. The nut typically covers any irregularities from where the shaft was pressed out. You can't do this with the later style service replacements. Starting in 1970 I believe the shackle shaft became a larger diameter compared to 65-69. The shaft necks down to the same thread size as 65-67. If you press out the shaft of the later style the resulting hole is too large for the nut . The old rubber bushings will not work on the newer Ford service shackle ether because they have too small diameter hole.
jwc66k:
--- Quote from: Bob Gaines on December 05, 2017, 06:13:38 PM ---I made my own using originals as donor parts rather then waste anymore time. FYI you need two good used ones (pre 1970 style) to make one duel exhaust staggered shackle.
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The dual exhaust type is the same for 66 thru 70, all used 1/2 inch dia shafts (64-65 are 9/16 inch dia).
--- Quote from: Bob Gaines on December 05, 2017, 06:13:38 PM ---You press out one shaft from each of two separate shackles . You fit together the two one shaft half's for a complete look.
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You need to drill out one of the mounting holes of the bar to press fit the shaft, and you need to do this to two bars (sorry, I can't remember the exact size, I think 1/2 inch - you should measure the knurled dia and make a slightly smaller hole). I phosphated the bars, clear zinc plated the shafts then pressed the shaft in the renamed plates.
The NPD pictures show a faint stamped ridge (I can't think of a good word) around the dome of the bar and plate about 1 1/4 inch on both their single and dual exhaust shackles. Bob's concern about the two types matching is correct. Also be advised, there "may" be a partial Ford part number "C6DA" on original bars.
Jim
ramblewood390GT:
Thank you for the advice. I'm sorry for starting the discussion in the wrong section. I'm pretty new to all this so even the most basic info is helpful to get me on the right track.
It sounds like I should get 4 original shackles and then create two staggered sets from those, for the most proper look?
Bob Gaines:
--- Quote from: ramblewood390GT on December 05, 2017, 09:25:55 PM ---Thank you for the advice. I'm sorry for starting the discussion in the wrong section. I'm pretty new to all this so even the most basic info is helpful to get me on the right track.
It sounds like I should get 4 original shackles and then create two staggered sets from those, for the most proper look?
--- End quote ---
Only need three. You need the staggered shackle (duel exhaust only) on the driver side only. The passenger side is normal. Two to make the special one and one for the for the passenger side.
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