JOINTS & BRACKETS


CROSSBAR JOINTS _____________________________________________________________


The solution comes from racecar chassis builder Bengt Wittander and it began on paper.


Arvidsson helped me to grind off the edges from the long treaded nuts that'll be hidden in the main bar.
3/4" (19 mm) will be just fine. Used a little bit of the tube (right) just to try the idea.


Drilling the holes in the bar and the crossbar brackets together is the only way. Then mock it up and
tighten it as hard as you will do when it's finished, fill the back holes with weld (not the bolt he he).


Grind the welds as much as you dare, the polisher will take care of the last part. Yes, it is perfect!


MATCHING BRACKETS
_________________________________________________________


Make sure to get to know a "Jöjje" and a "Lena" especially if they work with a Sabre 750. He's just
programming it to drill those four holes exactly at the same place over and over again. I knew Jöjje
and Lena before this project, and even more strange: we're still friends! Thanks!


It's a total of 12 steel brackets that'll be used and mounted together. It's definitely worth to have them
all drilled exactly the same. Plates is of Domex which is a Swedish quality steel brand and is
probably on par or even exceeding 4130 chrome moly. Chassis builder Bengt Wittander's tip.


The brackets that'll be used on the inside of the wheel wells was formed to fit better. Bolted together
and a series of bad toothaching blacksmith's smackaroes do the job. Now I see why I'm almost deaf...


NUTS ______________________________________________________________________________


Tighten the nuts as hard as you can when welding them onto the brackets, and the Domex steel need
to have its surface grinded off to get the weld to bite.


BAR JOINTS _______________________________________________________________________


Grinding and aligning and thinking and grinding and aligning and thinking and grinding and aligning and
thinking and grinding and aligning and thinking and so on. Mostly grinding and grinding and grinding.


"I kill you Arvidsson if you destroy my interior!!!!"
" Shut up!"
"okay..."


When working the joints there is a lot of concentration and mock up welding with the MIG before
going all the way with the TIG which is the LAW when building a chrome moly anything. The short
tube sleeves come on together with the rear bars. There are also a lot of ins and outs of the car
with all - or parts of - the roll bar when coming this far. Because you don't want it welded wrong...



Phew! I see a lot of hours of work here! Note the round grindings in the Domex brackets, they'll have the
chrome moly bars welded there.