New World Datsuns...

The ruined c-pillar looked good from a distance, but it wasn't fixable.

The next 2 pillars were 18ag instead of 20ag, and I left the hammer marks in them. Then I started building the back window frame:

I couldn't shrink the bigger side enough. So, the next attempt started with a plywood curve, but it looked weird too. The problem is a sedan window frame is more curved at the top than a coupe and it sticks out too far on a profile view.

I tried mocking up the sedan frame farther forward, and it looked good here:

I think it looks way better now. Real coupe pillars are angled forward more, but I don't want the roof to get any shorter. A flat lower anvil for my English wheel smoothed out the pillars, and she's back off the Miata again:

Just needs a big whip antenna and 4-corner gigantic hold down pins.

Impressive work, as usual.

I think you nailed the rear window opening. Your fabrication skills seem to be improving with every update.

I like seeing it laid out on the miata frame.

Looks good to me!! Keep it up!

Thanks! … I'm working on another update. Hopefully the Miata tub will be running and driving in 2 weeks.

In the meantime, do you guys think this will be safe? I need to extend this brake master push-rod about 15mm. The nut is where a10mmx1.25 stud connects to the already cut down push rod (so there's still 30mm of adjustability). I will weld both sides of the nut, or is there a better way to do this? I'm trying to use a 1999 Miata master/booster to delete this 2006 Miata's ABS.

If your saying that nut is holding an extension on I would say no don't do it that way, get a long nut at the hardware store.


I am not saying get a nut this long, but one longer than that, here is a small version of what I am talking about.

Oh... good idea. That's why I asked. I was obviously going to weld the nut, but I will see what I can find online (can't leave the house for non-essential car building). I think a longer extension and shorter push-rod with one of those nuts would be good.

As that is probably a metric thread, you may need to look at a place like Mcmaster Carr for the rod coupling.

A longer nut for sure. Green locktite would not come apart either.

I have made several power brake booster setups for my 520 and 521 trucks, I make the booster rod setup to the pedestal height/length, here is what is on my 521 work truck.






I understand you need a shorter setup, that is why I suggested what I did, yes my stuff is metric, also I have shortened that long nut before, I cut the end off an inch before all the threads were gone on the inside, then I drilled the hole deeper and threaded it deeper, then cut it the length I needed.
You can see I crushed the pedestal end and made a flange and welded it on the end so I could use the stock 521 SAE studs to mount it on the inside of the pedestal, of all the ways I have done it I like this way the best