Marlin Crawler - Online Forum > Vehicle Specific > Toyota Pickup/4Runner Tech 79-95 (Moderators: 79coyotefrg, Willy Mammoth, Blingn) > Topic: leaf spring center bolt sheared
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abriel68
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« on: October 28, 2009, 03:41:10 PM »
my center pin sheared im getting ready to break it down and fix it, just need tips on breaking it down, and what size bolt and nut i need
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« Reply #1 on: October 28, 2009, 03:43:57 PM »
Quote from: abriel68 on October 28, 2009, 03:41:10 PM
my center pin sheared im getting ready to break it down and fix it, just need tips on breaking it down, and what size bolt and nut i need

Just use a couple c clamps to pinch the springs together, undo your ubolts, pull the centerpin, and take the broken one to napa. They will find you a match.
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« Reply #2 on: October 28, 2009, 04:06:34 PM »
its recomended to buy new u bolts, usually, i never do and i have never had a problem.....  and yes every good parts house should have a center pin, but if they dont you will have to grind the head of a bolt down to a circle, just make sure it fits snugly...
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abriel68
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« Reply #3 on: October 28, 2009, 04:29:21 PM »
thank you guys, yeah i think im going to use a bolt, just bought em today. im waiting for a shim to come in the mail and i should have this done tomaro.
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« Reply #4 on: October 28, 2009, 08:42:39 PM »
how did you break it anyway..... just wondering
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86rustbucket
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« Reply #5 on: October 28, 2009, 08:45:49 PM »
i paid 3 bucks each at napa   i think 4 inch is shortest they had
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abriel68
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« Reply #6 on: October 29, 2009, 11:17:28 AM »
i guess i broke it while they were flexing. the shim fell out while i was driving.
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« Reply #7 on: October 29, 2009, 11:25:51 AM »
Sounds like you have an issue with the u-bolts.  I say spend a few dollars and get new u-bolts and go from there.  Just flexing shouldn't allow the shim to come loose and shear the center pin.  Sounds like a u-bolt got loose just enough to allow things to move around.  Another thing is to clean up all the mating surfaces of rust or debris. 


Something I just thought, was how long is the head on the center pin.  It should be long enough to go through the shim and reach into the hole in the perch/pad.  If it's not long enough it may allow the leaf spring and shim to walk on the perch/pad.  I used to see this alot on backyard lift kits with homemade lift blocks. 
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abriel68
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« Reply #8 on: October 29, 2009, 03:29:54 PM »
thanks yeah it started out with loose u bolts i had lost ubolt nuts the shim fell out, and i continued to wheel it then the pin sheared.
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« Reply #9 on: November 03, 2009, 12:02:53 PM »
gottit fixed took less then an hour. thanks guys
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Marlin Crawler - Online Forum > Vehicle Specific > Toyota Pickup/4Runner Tech 79-95 (Moderators: 79coyotefrg, Willy Mammoth, Blingn) > Topic: leaf spring center bolt sheared
 
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