NB sub-frame in NA
#41
Cpt. Slow
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Well this is all good info. Recently swapped to an NB subframe/rack on my NA with non-LE rod ends. Looks like I won't be changing to LE and will be keeping an eye out for NB knuckles.
As for the rack, I did use the NB u-joint with the NA shaft. If it's too long, slide it back into the column, it's a safety feature with ~6" of play...
FWIW I also mated the entire NB power steering setup onto my NA, only changing the reservoir. I did opt to run an aftermarket cooler with soft lines to the reservoir/rack however.
As for the rack, I did use the NB u-joint with the NA shaft. If it's too long, slide it back into the column, it's a safety feature with ~6" of play...
FWIW I also mated the entire NB power steering setup onto my NA, only changing the reservoir. I did opt to run an aftermarket cooler with soft lines to the reservoir/rack however.
#44
Former Vendor
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It's painfully pedantic, but the NA and NB arms interchange and the NA arms have the double-shear endlink mounts. Not a big deal on most cars, but when you've got a 1-1/4" bar with a 3/16" wall thickness in the car, the swaybar system needs all the help it can get.
The ideal setup is an NB subframe, NB rack, NB FUCAs, NB spindles, and NA lower arms, Bauer ELBJs, and 93LE tie rod ends.
The ideal setup is an NB subframe, NB rack, NB FUCAs, NB spindles, and NA lower arms, Bauer ELBJs, and 93LE tie rod ends.
#48
Cpt. Slow
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#55
Cpt. Slow
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Sorry to thread jack, but we're parting out another 2003. Just so i'm clear, I want to grab the front knuckles and upper arms? How horrible would it be if I kept my non '93LE outer tie rods? Also it's 90% a street car, so do I strictly need the ELBJ? Don't get me wrong, I'm club orange and am happy to grab Emilio's new front end service kit, but I also don't know if I necessarily need near 4* on the street.
#57
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Does anyone know how to visually (or otherwise) differentiate between NA and NB front upper arms?
I have a set that I plan to use to facilitate a bushing swap, but when I obtained them I didn't realize there was a difference in the upper arms, and I don't know for sure whether they came off an NA or NB...
I have a set that I plan to use to facilitate a bushing swap, but when I obtained them I didn't realize there was a difference in the upper arms, and I don't know for sure whether they came off an NA or NB...
#59
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Found this:
![](https://cimg2.ibsrv.net/gimg/www.miataturbo.net-vbulletin/960x720/nb2_fuca_gusset_f31b267adc8f1363797e5d39f0903a5272292d45_69ab04d45b9064ea3a2bea8a05f201b1fb3ed36d.jpg)
Which I think answers my question... just have a little more research to do to confirm NB1 v. NA, and I think the answer is still in the underside bracing.
EDIT: OK, I believe the FUCAs I have are NA... It appears the underside bracing was extended from NA to NB1, and again from NB1 to NB2. If anyone has any different info, please speak up.
![](https://farm5.staticflickr.com/4833/45280061775_511e17dfe6_c.jpg)
Last edited by Roda; 12-05-2018 at 12:45 PM.