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shock bolt broke, cut out floor?

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Old Dec 21, 2011 | 06:32 PM
  #1  
bnkk's Avatar
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From: Tunkhannock PA
Year: 99
Model: Cherokee
Engine: 4L
Default shock bolt broke, cut out floor?

Im gonna install my lift tomarrow so i figured id try the shock bolts tonight so i can get new ones after the expected brakage. First one snapped with little effort.

Should i cut the rear floor out to make it easy to get new bolts in? Just a small section or try feeding them in like the write up in tech section on here?

Also is the bolt size 5/16 1" long for the front and rear?
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Old Dec 21, 2011 | 06:38 PM
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Year: 1990
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ive had this problem a few times. what i did was drill out the nut thats inside that sub member in the back. use a nut and a washer and sitck your hand up there and put the bolt through. use a lock washer or youll have a hell of a time tighting it up
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Old Dec 21, 2011 | 06:59 PM
  #3  
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From: Tunkhannock PA
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Model: Cherokee
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What size bolts did you use?
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Old Dec 21, 2011 | 07:00 PM
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if you didnt break the stock nuts loose from the subframe, drill out the old bolt and re tap the holes, thats what I did.
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Old Dec 21, 2011 | 07:08 PM
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From: cape cod ma.
Year: 1998
Model: Cherokee
Engine: 4.0 i6
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i normally drop bolts down through the unibody .... 5/16 will do 3/8 bettah get new or they will suck to tighten....

Last edited by alloutperform; Dec 21, 2011 at 07:10 PM.
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Old Dec 21, 2011 | 07:08 PM
  #6  
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From: Long Island N.Y.
Year: 1999
Model: Cherokee
Engine: I6 4.0
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Use a chisel amd punch them out
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Old Dec 21, 2011 | 07:24 PM
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From: cape cod ma.
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or he could get a punch and punch them out
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Old Dec 21, 2011 | 07:27 PM
  #8  
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From: Tunkhannock PA
Year: 99
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Engine: 4L
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Im gonna get new grade 8 3/8 is 1" good. Front same? What size is the bolt from leaf to shackle? Just want to have all new
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Old Dec 21, 2011 | 08:10 PM
  #9  
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From: adirondacks, New York
Year: 2001
Model: Cherokee
Engine: 4.0L 6cyl
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i had the same problem. i ended up cutting the floor and then cut all the old weld nuts out then replaced it all with new grade 8 3/8" hardware. i think an inch would work
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Old Dec 21, 2011 | 08:20 PM
  #10  
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From: cape cod ma.
Year: 1998
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shackle bolt is metric good luck.... 9/16" X 4 1/2 is the best replacement for that if i recall (DON'T QUOTE ME ON THE LENGTH... DON'T REPLACE THAT UNLESS YOU BREAK/ HAVE TO CUT IT!!!!!)
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Old Dec 21, 2011 | 08:58 PM
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From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
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MY OP broke the bolts drilled new wholes and used those bolts with threads to screw the bolts in. worked great so for me. idk how long theyve been in there though
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Old Dec 22, 2011 | 03:33 PM
  #12  
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From: Tunkhannock PA
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Did front and one side of rear today. The other bolt came out fine with an impact gun. Tied a string to new bolt and pulled it through this was way easier then i thought.
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Old Dec 22, 2011 | 04:44 PM
  #13  
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From: Genesee County, MI
Year: 1999
Model: Cherokee
Engine: 4.0 Litre Chrysler MPI, "High Output"
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I say just drill it out and use a flush nut.
Did all my tears that way and haven't had any problems so far at all. Took all of 10 mins per side.
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Old Dec 22, 2011 | 07:30 PM
  #14  
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From: Nashville, TN
Year: 1997, 1993
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Engine: 4.0L
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Air hammer and fish in new bolts. No need to cut the floor up.
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Old Dec 22, 2011 | 07:32 PM
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From: Louisville, KY
Year: 2000
Model: Cherokee
Engine: 4.0 liter inline 6
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Same thing happened here.....went through the floor here too.
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