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| | | | Joined: Sep 2009 Posts: 69 New Guy | | New Guy Joined: Sep 2009 Posts: 69 | how tight do i need to tighten the rear shackles for the leaf springs? just tight or torqued to a specific number? its a 1952, if that helps.
Last edited by cletis; 10/20/2009 6:28 PM. Reason: clarified title
2000 Nissan Frontier, 3.3L (sold)
2006 Chevy Cobalt SS, 2.4L
1952 Chevy 1/2 pickup, 235 c.i. I6
when life speeds up, downshift
| | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | I take it that you have replaced the factory shackle pins with the aftermarket style that has the nuts on the outsides of the shackle plates. The manual does not give a specification other than to "tighten the center bolt securely". That said, I'm going to give my opinion on what to torque it to, based on my experience as a Suspension/Brake/Alignment mechanic. The ends of the replacement pins are 1/2"-20 thread as I recall. I would go with about 60-70 ft lbs to ensure proper seating of the tapers.
If you are using the modern rubber style bushings, use the same torque value, and make sure to tighten them with the weight of the vehicle on the springs, as that will prevent bushing bind.
Bill Burmeister
| | | | | Joined: Feb 2000 Posts: 769 Shop Shark | | Shop Shark Joined: Feb 2000 Posts: 769 | Longbox
What is the source for the replacement shackles you are talking about? | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | I got mine from the local spring shop (Burke Spring in Tilton Ill). They didn't include the side plates, only the shackle pins and the bushings, along with new gease fittings and the locking nuts. I got the front spring eye bushings and pins from the same place.
Bill Burmeister
| | | | | Joined: Sep 2009 Posts: 69 New Guy | | New Guy Joined: Sep 2009 Posts: 69 | everything is original. i was just curious. but my dad and i were stupid and we didn't look at the picture of the rear suspension good enough so we had to re do the rear suspension 3 times. what a pain
2000 Nissan Frontier, 3.3L (sold)
2006 Chevy Cobalt SS, 2.4L
1952 Chevy 1/2 pickup, 235 c.i. I6
when life speeds up, downshift
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