What bolts are recommended for the Haynes roadster type wishbones? 50 mm bracket overall width, I've got some m12 with a 55mm shoulder, with washers I think these should be ok, I don't want any thread inside the bracket
Feel depending on bush size (ID) an imperial bolt will be better.
I changed my rear from m12 to 1/2" and there was an obvious difference in handling.
interesting i might get some unf bolts and try it
The brackets, bush tube are defiantly too small for 1/2" bolts
I had to drill out the brackets on the chassis to get the 1/2" in.
That was easier than to change the bushes. The fronts are still not done. I neex the engine out to be able get the drill in
Mine is based upon the Haynes book, although the brackets should all be the same, used 1/2" UNF as m12's fitted the chassis brackets but
rattled around in the rubber bushes so drilled the brackets out.
I have now discarded the rubber bits and fitted 1/2" UNF Rose joints, plentiful and cheap which really tightened things up without affecting ride
quality.
To get the drill into the brackets buried further back within the car I welded a 12" of rod to the drill bit so went through the front brackets
and kept going to do the rear 
[Edited on 18/7/15 by mark chandler]
The suspension brackets supplied by me the holes are cut to 12.1mm for M12 bolts. If you have a hunt around on ebay there are few people doing lathe work that will make 304 grade stainless crush tubes for £2 each.
All the bushes on my Fury were 1/2 inch and the bracket holes were M12. I bought a reamer to make the chassis holes bigger and used unf bolts.
Hopefully to answer the original question, this is a 75mm M12 bolt with locknut and washers;
There's a good amount of thread protruding, but you can see the thread does end up inside the bracket.
[Edited on 18/7/15 by Slimy38]
quote:
Originally posted by mark chandler
Mine is based upon the Haynes book, although the brackets should all be the same, used 1/2" UNF as m12's fitted the chassis brackets but rattled around in the rubber bushes so drilled the brackets out.
I have now discarded the rubber bits and fitted 1/2" UNF Rose joints, plentiful and cheap which really tightened things up without affecting ride quality.
To get the drill into the brackets buried further back within the car I welded a 12" of rod to the drill bit so went through the front brackets and kept going to do the rear
[Edited on 18/7/15 by mark chandler]
I'm going to be using AN bolts with the brackets reamed to the proper size.
That means the there's no slop between the brackets or the rose joints.
quote:
Originally posted by Slimy38
Hopefully to answer the original question, this is a 75mm M12 bolt with locknut and washers;
There's a good amount of thread protruding, but you can see the thread does end up inside the bracket.
[Edited on 18/7/15 by Slimy38]
quote:
Originally posted by Slimy38
Hopefully to answer the original question, this is a 75mm M12 bolt with locknut and washers;
There's a good amount of thread protruding, but you can see the thread does end up inside the bracket.
[Edited on 18/7/15 by Slimy38]