90civichhb

iTrader: (5)

I am currently about to put together my differential, but I wanted to run a few things past some of you all here that has done this swap.

Current parts:
96 NA open differential
96 drive shaft
84 RX7 clutch type differential chunk (3.909 ring gear)
84 RX7 stub shafts
94.5 NA half shafts

Now, I need new differential seals and clips for my stub shafts. I have read many people have had issues with a leaky seal after they do this swap and I am under the impression it is because the RX7 stub shafts have a different oiling pattern on them over the Miata stub shafts.

Are these seals ideal for what I am doing?

Are these the proper clips for my RX7 stub shafts?

I plan on making a video of this process, but I want to be 100% before I put out the information. Thanks!

patsmx5

iTrader: (16)

I run the RX7 clutch type with new mazda seals and my 99 axles (1 piece axles) for years, no leaks.

90civichhb

iTrader: (5)

Great info, do you have any experience with using rx7 stub shafts?

patsmx5

iTrader: (16)

No experience with them. I have 1 piece axles so don't need them. That, and I read wayy to many people that had leaks using stub axles for whatever reason, so I decided to use what I know doesn't leak (99 axles, 99 seals).

90civichhb

iTrader: (5)

I would have gone with the one piece, but I got the two piece at such a good deal and the ease of maintenance is great when removing the diff for whatever reason. I will keep diving into some more literature and see what I find. Thanks for the input though.

patsmx5

iTrader: (16)

If I had to use the stub axles, I'd buy whatever axles seals go with those stub axles. That way they match/should work together.

90civichhb

iTrader: (5)

It seems that some people have success with the NAPA seals.

But they are $38 a piece!

patsmx5

iTrader: (16)

I ran new mazda seals, they were very cheap, like 10 each if I remember right.