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Welding FC Pinion Gear

Old 10-14-11, 03:16 PM
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Welding FC Pinion Gear

Ok, who still does this? I know speedsource did at one time but im not sure they do anything with RX-7s anymore. Also ISC did at one time...waiting for an email back form Mike.

I want a shop that has done a few, and figured out the right welding rod, heat/cryo treating, etc to make them last....

I bought a few sets of 4.78 gears out of some Junk-yard Kias. Thinking some other folks might want to get in on a group cost for the machine work, or just sell them to guys with other cars...

My understanding is these will bolt into S2000s, Miatas, and 1st gens? Is that true?
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Old 10-14-11, 06:17 PM
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If so I am DOWN... I've been chasing people trying to part their cars with 5.12's
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Old 10-14-11, 07:51 PM
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Whatever you do, don't do it like this! lol

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Old 10-14-11, 08:46 PM
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Someone on this forum had a 4.78 done at http://www.rebelloracing.com/, he'll probably chime in soon.

There is a guy involved with Speedsource who is still doing them, but you won't find him here and he wouldn't want me posting his name. PM me and I will point you in the direction where to find him.
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Old 10-16-11, 09:41 AM
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Originally Posted by RockLobster View Post

My understanding is these will bolt into S2000s, Miatas, and 1st gens? Is that true?
Yes.

You can also use the miata Torsen diff in the big bearing first gen. The Kia front third member is a direct swap for first gen big bearing diff.

97+ Kia sportage 4x4

Last edited by nofords; 10-16-11 at 09:42 AM. Reason: Damn you auto correct!
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Old 10-17-11, 09:00 PM
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I would be interested in "group buying" the machine work. I've been putting away for a 4.9 already.
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