Did these always stay the same? Mine were welded in 30 years ago and the bolts I have have feel a little too reluctant to my mind.
But were they all the same, as I can chase the threads with a tap and try again?? What size (s) please folks???
Rear Subframe to heel board threads
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cpr1
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woodypup59
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Re: Rear Subframe to heel board threads
Indeed they should be 5/16 UNF, but we often find an 8mm bolt (or even worse studding) rammed in there ! 
Last edited by woodypup59 on Wed Sep 09, 2020 4:03 pm, edited 1 time in total.
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InnoCooperExport
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Re: Rear Subframe to heel board threads
Mine had been replaced with M8 threads. Had to spend quite some time finding some 12.9 rated m8 bolts!
Of course I know what a dipstick is, you get called something often enough you look it up!
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AndyPen
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Re: Rear Subframe to heel board threads
Its new metal put in a long time back so I'll try the M8 just to see, but hope that they were the genuine BMC ones as that's what I was led to believe back then 
Thanks for all the info folks
Thanks for all the info folks
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InnoCooperExport
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Re: Rear Subframe to heel board threads
Worth trying m8 as at some point I think all repair panels were metric...
Of course I know what a dipstick is, you get called something often enough you look it up!