71 Convertible Rear mount bolt spun

Old February 27th, 2018, 05:49 PM
  #1  
Registered User
Thread Starter
 
Rocketbrian's Avatar
 
Join Date: Aug 2010
Location: Economy, NovaScotia
Posts: 892
71 Convertible Rear mount bolt spun

Yesterday on my 71 SX I removed two pieces of angle iron that were welded to the frame and bumper brackets by a past owner for purposes of mounting a trailer hitch. Apparently before that route, the morons used the rear cross member to attempt to tow something and pulled the crossmember down bending the body mount bolts and preventing the bumper from being able to be fully raised into position. Now I am in the process of replacing the mounts and bolts and will be replacing the rear crossmember with a reproduction piece. Of course the nut spun for the right mount bolt and I suspect the same will happen to the left one necessitating a hole to be cut in the trunk floor.
It would seem the hole must be cut in the sloped part of the trunk? For those that have done this what did you do and what size of hole is best to get a good grip on the nut? Suggestions?
Some pictures for your entertainment.
Attached Images
File Type: jpg
20180227_145116.jpg (4.74 MB, 15 views)
File Type: jpg
20180227_163641.jpg (4.92 MB, 14 views)
File Type: jpg
20180222_184406.jpg (4.04 MB, 12 views)
File Type: jpg
20180227_160223.jpg (1.52 MB, 14 views)
Rocketbrian is offline  
Old February 28th, 2018, 07:34 AM
  #2  
Old(s) Fart
 
joe_padavano's Avatar
 
Join Date: Mar 2007
Location: Northern VA
Posts: 31,646
The path of minimum damage is likely to cut the head off the bolt, cut a hole in the trunk floor, and extract the cage nut and remainder of the bolt that way. As for the other side, drill a small hole in the trunk floor above the nut and liberally apply your favorite penetrating oil. Also, always use an impact wrench to remove these bolts. This seems to help break the rust loose.
joe_padavano is offline  
Old February 28th, 2018, 09:02 AM
  #3  
Registered User
Thread Starter
 
Rocketbrian's Avatar
 
Join Date: Aug 2010
Location: Economy, NovaScotia
Posts: 892
Thanks Joe. I would have forgotten about the impact wrench. Appreciate the reply.
Rocketbrian is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
raw442
General Discussion
27
September 16th, 2012 07:37 PM
sicky olds
Small Blocks
22
February 29th, 2012 01:36 PM
olds455
Big Blocks
54
July 22nd, 2010 06:16 AM
Topless72
Big Blocks
8
April 9th, 2008 11:47 AM
OLD SKL 69
Drivetrain/Differentials
2
January 24th, 2008 08:36 AM


Thread Tools
Search this Thread
Quick Reply: 71 Convertible Rear mount bolt spun


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.