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Old 06-17-2012, 01:17 PM   #1
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Default Diff/axle identification

I'm getting a leak out of my diff and one of the axles is throwing grease so I'd like to replace the seals and maybe both axles while I'm in there.

I have a 92 but I believe the rear and the trans were swapped. It has the pinion damper and no stub axles - all the research I've done so far show axles with stub axles and either a one piece - two piece half shaft. I read that possibly 99+ cars used a single piece without a stub? Is this what I have here? What can I replace these with?

Any good sources on reman'd or new axles?

Thanks!

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Old 06-17-2012, 02:00 PM   #2
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1.8 diff, which means someone who knew what they were doing owned the car before you. You can buy the boots and fresh grease from Mazda for a lot less than a fresh axle costs.
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Old 06-17-2012, 02:12 PM   #3
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Originally Posted by xcoldricex View Post
I read that possibly 99+ cars used a single piece without a stub?
The one piece axles appeared mid-95. http://solomiata.com/Drivetrain.html

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Old 06-17-2012, 08:24 PM   #4
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Originally Posted by Savington View Post
1.8 diff, which means someone who knew what they were doing owned the car before you. You can buy the boots and fresh grease from Mazda for a lot less than a fresh axle costs.
excellent. i was told it has a guru torsen in it, but i haven't opened it up to confirm yet.

one of my mechanic friends said you needed a special tool to stretch the boots on - or maybe only on certain cars? is it a relatively straightforward procedure and aside from axle seals anything else i should replace while doing this? (axle nut if i have to take that off?)
thanks!

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Originally Posted by codrus View Post
The one piece axles appeared mid-95. http://solomiata.com/Drivetrain.html

--Ian
Thank you! So anything 96+ should be ok according to this:
Starting with cars with build dates during March of 1995 (according to the interchange book it was VIN 14193), Mazda introduced a single piece half-shaft, gone was the stub shaft. The single piece half-shafts were typically used on Torsen equipped rears starting 3/95 but by the 1996 model year they were all that was used.
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Old 06-17-2012, 10:58 PM   #5
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Quote:
Originally Posted by xcoldricex View Post
Thank you! So anything 96+ should be ok according to this:
Actually, all 1.8 axles (except MSM axles) are freely interchangeable. You can replace one-piece axles with two-piece axles and vise-versa. That said, the CV joints on the Miata are an uncommon failure point, and I can't imagine needing to replace them. If the CV boot is torn, just disassemble, clean, re-grease, and back to work.

Also, it's fairly easy to remove the axle from the car without separating it from the hub- you just remove the brake caliper and then the bolts which hold the hub to the control arms. If anything, it's probably easier this way.
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