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76 RX-3 Build

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Old 09-22-15, 09:13 AM
  #26  
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Nice build good luck!!!!!
Old 09-22-15, 11:40 AM
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I do plan on using that front inspection plate on the FD for transplanting the shifter. I assume I will still have to use a bent long throw shifter though. Still need to do a full mock up of the driveline to confirm location of everything.
Old 10-06-15, 09:07 PM
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I have a few rx-3 parts on ebay right now.
They aren't in perfect condition, but may be something you could work with.

Mazda RX3 RX 3 Brake Lights Left AND Right Side | eBay

Mazda Kotto RX 3 RX3 Front Grill | eBay
Old 10-06-15, 09:09 PM
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Rx-3 parts

deleted....duplicate
Old 10-19-15, 07:29 PM
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Well first rail is out. The new rail is a 2x3 11 gauge from Autoweld with a 3" rise. Will be cutting the floor and then reinforcing with angles at the spot welds. Also plan on making out riggers to the pinch weld.
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Last edited by fritts; 10-19-15 at 07:33 PM.
Old 12-23-15, 06:52 AM
  #31  
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Picture of the FD shifter relocation i completed this past weekend. Works well

Old 12-23-15, 05:28 PM
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Glad to see my idea on the shifter location wasn't all goofy. Do you have any pics of how you made the change?
Old 12-28-15, 06:22 AM
  #33  
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Yea i took quite a few of them. It was pretty straight forward once i dissembled everything and figured out what i needed. Im sure you wont have any issues with the swap.
Old 12-30-15, 05:38 AM
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One day I'll have the time to pick up an RX-3 and bring her back to her former glory. Good luck with the build.
Old 01-25-16, 11:34 AM
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Looking for some help on finding out what the stock RX-3 trans mount to firewall distance is. From what I can tell is 5 or so inches. Could someone confirm that distance?
Old 01-31-16, 09:19 AM
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Any help with the engine back plate/trans bell plate to fire wall stock? I have never had an engine or mounts in this vehicle and would like it for reference.
Old 02-04-16, 12:59 AM
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Originally Posted by fritts
Any help with the engine back plate/trans bell plate to fire wall stock? I have never had an engine or mounts in this vehicle and would like it for reference.
On my '73 it's 6.5" from the firewall to mate line between the engine and transmission.
Old 02-04-16, 03:25 AM
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Originally Posted by gerald m
Body doesn't look so bad . yea seems like all these old guys are a bugger getting parts for my 73 wagon is the same not bad but it would be nice to have a new fender and a front bumper i would be happy . if you happen to come across someone that can supply for these old guys please post
do you need any other things for wagon ??
in BC Canada took apart wagon , any idea of any rx3' coupes in canada
Old 02-06-16, 02:29 PM
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Got a bit more work done positioning the trans/engine. Trying to make sure everything matches my SolidWorks models.
Attached Thumbnails 76 RX-3 Build-20160206_141036.jpg   76 RX-3 Build-20160206_140853.jpg   76 RX-3 Build-20160206_141101.jpg   76 RX-3 Build-20160206_141206.jpg   76 RX-3 Build-20160206_143119.jpg  

Old 07-03-16, 07:38 PM
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Thought it was time for an update

Frame rails removed and cut for new mandrel bend box sections.
Attached Thumbnails 76 RX-3 Build-20160611_101905.jpg   76 RX-3 Build-20160611_101926.jpg   76 RX-3 Build-20160611_123215.jpg   76 RX-3 Build-20160611_123224.jpg  
Old 07-03-16, 07:39 PM
  #41  
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Working on adapting the Ford 8.8 with the FD rear brakes. Required cutting down the axle flanges and creating a new adapter plate.
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Old 07-03-16, 07:44 PM
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Patch panel for the drivers side rear quarter.
Attached Thumbnails 76 RX-3 Build-20160703_180431.jpg   76 RX-3 Build-20160703_180424.jpg   76 RX-3 Build-20160703_180500.jpg   76 RX-3 Build-20160703_192056.jpg   76 RX-3 Build-20160703_192122.jpg  

76 RX-3 Build-20160703_193046.jpg  
Old 07-03-16, 07:45 PM
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Also have removed the lead from the rear quarters and have started the drip rail removal.
Attached Thumbnails 76 RX-3 Build-20160605_084136.jpg   76 RX-3 Build-20160530_103848.jpg   76 RX-3 Build-20160531_101753.jpg   76 RX-3 Build-20160530_103852.jpg  

Last edited by fritts; 07-03-16 at 07:47 PM.
Old 07-03-16, 07:53 PM
  #44  
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Also started to fab the front subframe.
Attached Thumbnails 76 RX-3 Build-20160414_204732.jpg   76 RX-3 Build-20160414_204814.jpg  
Old 07-12-16, 03:23 AM
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looking nice
Old 07-12-16, 08:50 PM
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Wondering what everyone does in regards to running flares and a wider track. I really hate to do it but trying to figure out if I need to remove the rear quarter oe flares and how to stitch it back together.
Old 07-20-16, 02:02 AM
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I forgot how much i disliked thar butterscotch color. I had a '76 just like it. My wife drove it (we had enough money for a second car) and i had my '72 4 door blue RX-3. I got a '77 RX3SP the next year and in '78 got a new RX7. As i recall the 76 was a real lemon. Had the Free Maintenance program on that one and it cost Mazda about $2000 .
Something needed changing every 2 or 3 months.
Old 07-20-16, 06:28 AM
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Drilled and welded thread bungs for the subframe mounting. Will use a plate with these bosses to help align the frame rails for welding into the chassis. The plate will then be used to figure the subframe for welding.
Attached Thumbnails 76 RX-3 Build-20160719_175823.jpg   76 RX-3 Build-20160719_201852.jpg  
Old 03-03-17, 08:26 AM
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Been a while since I updated frame rails are partially welded in. I have started my suspension mounting with a big change to a triangulated 4 link from welder series. After the flex-form spring debacle. I worked out a way to get the triangulated bars in a good spot without rear seat tear up. Also working on getting a heavier plate in stalled for upper control arm mounting tying into the firewall and front clip. I think rim and tire size will be the 15x8/15x9's with 225 and 245 RS4's. Hopefully with the low offset they will fit over the FD brakes.
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Old 03-03-17, 11:22 AM
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That frame is looking great , nice job


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