Also try "plus gas", it is a lot more effective than WD40. Also a large impact drive if you can get hold of one.
 
this mite sound daft but,try white vinegar spray it on all ova em as much as ya can n leave em a gud few hours then get ya 3/4" bar n tube n give em a go.this mite sound daft but sometimes vinegar ul shift wot WD cant.
ALSO

I now use this "Asda Multi", No kidding guys ive used them all whilst working on various rail and plant/farm machinery, GT85, WD40, Duck oil etc etc, But none of them have come close to this! a £1 for a 400ml can guys give it a go its pretty dam good, everything underneath my rusty disco has come undone with a mild spray of this gear!
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This one might work...

[ame="http://www.youtube.com/watch?v=8g_GeQR8fJo"]YouTube - You're only supposed to blow the bloody doors off![/ame]
 
well got one of the bastads off but its ripped out 3 of the 5 studs out so im gonna have to steal some off the donor vehicle when it stops raining
 
they have been cherry red n there still solid

were do you get this spray from and were would i get liquid nitrogen from + how much is it gonna cost me

only seen it in one place as yet, ajs in tibshelf, its about five quid a can. when i asked him about it he says it is **** hot stuff and works a treat on seized nuts. i think its made in germany.
 
pity your not closer i got a one inch impact driver for plant machine stuff, it works off a one ten transformer and is dam powerful ! it eats the seized wheel nuts on my old clonker JCB.
 
if yer were down here i would have come rattled them off with me impact gun that'll undo nuts me old works 1" gun couldn't and its only a 1/2"
 

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