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My HQ's subframe is tweaked after a small accident a year ago. Seems to be just the tips but i want to be sure. As it's half way through a total bare-metal rebuild, i want it straight before i try line up my panels/gaps.
Most "hands on types" used to repair their Kingswood with a sledge hammer or chains on a lamp post, but i'm after accuracy.
Smash shops are uninterested in having something like this on thier jigs.
Anyone had similar work done?
"Silly modern cars" |
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Hi Peter,I havent had any of this done but I'm wondering if it might be easier to just get another one? Not knowing your situation,for all I know it could be a collectors car,but it reads like a HQ,in saying this you might just want to keep the numbers,but its just a thought,as you say ,not much interest in straightening the oldies,shame.If its just the tips you may be able to massage it yourself with wood blocks and a jack maybe?test fit the panels with just a couple of bolts?just throwing ideas around.
Jim in Adelaide |
Jim in Adelaide.. |
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take some measurements from different points and compare them to another chassis, should be some bare front chassis at the wreckers from picked over HQ`s..
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Most smash shop jigs aren't much use on a subframe like the HQ's anyway. Better off with a measuring tape and a sledgehammer.
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I have an original databook here somewhere with pictures showing all the measurements (diagonals etc). It is a propoer book used by panel beaters for the exact reason you want. I know it has this era utes and vans in it (if it doesn't have sedans) and these will have the measurements you want. If you need it i'll try scanning the relevant page(s), only issue will be it's an A3 size book.
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Only reason i haven't got a new chassis is i had to draw the line somewhere. This build is body only, but going to the top shelf for the metalwork. Cost a mint, even doing most rubbing and stripping myself down at Pro Street Restorations. Plug plug. Haha.
Cheers for the input guys.
HK, (Byron wasn't it?) if you could that would be awesome. Worst case i'll get some measurements and start carefully pressing/drifting away!
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Hi .. There was a place in NORTH MELBOURNE. called Carrera Motors.. (03) 9329 5999... they did front end work a long time a go... this may or may not be the same place.. may still have jigs.. The best way would be bolt to floor or frame and pull with a porter power and some heat...Will take some time to do right..and check for cracks tooo..
Tony
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A resto shop should still be able to straighten a chassis. We do at our resto shop, and we could do your chassis no problem. It all comes down to hours, not quotes. If it is old or rare - Cut it! http://www.ehlimo.com.au/ |
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Hi to add abit more, many chassis will have problems anyway so unless yours is very bad save your money and just straighten yours, As has been indicated, many crack just behind the rear of the lower control arm mounting point and they all should be checked closely. They also crack at the top arm mounting either side of the shockie mount.
Of course if you are swapping chassis be aware that the licencing athorities in some states might look at this a bit!
HQ, HJ and WB have bolt on brake line brackets. HQ HJ and most HX have a lesser caster setting and have a the top suspension arm mounting more concentric.
late HX, HZ & WB on mountings were made with more caster and more offset, perhaps the Dr can say more here?
Many chassis will have sagged in the middle, so when you get those measurements check this of course.
Mike
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All valid points, thanks.
Haven't found any cracks but the motor comes out for a more thorough clean and inspection of the subframe (not to mention a healthy, solid cam!).
If we had time we'd look at the chassis at Pro Street but basically we got my body done and he's shipping himself and his business up north. Besides, he'd rather build a tubular front end, he's that sort of guy. Haha.
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Glad to help, our chassis ony showed the cracks after sandblasting.
Mike
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[quote]Originally posted by Mike81973 HQ HJ and most HX have a lesser caster setting and have a the top suspension arm mounting more concentric.
late HX, HZ & WB on mountings were made with more caster and more offset, quote]
I've got HX front rails in my HQ, was done before I got it in '83, & I do my own alignments when I have access to an aligner but never considered that my rails might be RTS. Do you know when RTS came on line & can you tell from my chassis number if its pre or post RTS?
Cheers J
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The RTS style rails came out in mid-76, sorry I don't have chassis number cut-off.
The easiest method of telling whether you have RTS rails or not is where the top shocky mount is located. If the top shocky mount is midway between the 2 upper inner bushes it is an RTS unit. If the top shocky mount is more towards the rear of the car it is a non-RTS unit.
Dr Terry
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Thanx Dr T, I'll check it the morning
J
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Carrera motors is still in north melbourne , 68 leveson st north melbourne 9329 9260.these guys do a large volume of work for all insurance companys chassis, 4x4 ,trucks , all general mechanical work & suspension . worth a try , speak to matt or chris . with most chassis or subframe rails ect to repair cold is the first option , heat only if cold pulling does not remedy . when heated the mild steel becomes hardened in the heat effected area ans if repeated it will give way to cracking in the future as the harder the steel becomes the more brittle it also becomes..the hq rails usually roll the rail horn in on itself , you need to have the chassis level first off, check the length each side, then n work the diagnals , all while maintaining the level ,check the rear mounting holes against the body bolt holes ( width ), and check the front width centres from your rad support panel . hope this helps .
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