3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
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4.30 OR 4.55 Ring and pinion?????

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Old 03-15-07 | 10:16 AM
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4.30 OR 4.55 Ring and pinion?????

recently acquired a Fd diff unit which possibly has a 4.55 ring and pinion
the ring has 41 teeth and the pinion 9 hence 4.55
the stamping on it is po8 and paint marks are 61 and 3.
can someone compare to a 4.30 ring and pinion set????
Old 03-16-07 | 08:15 AM
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Old 03-17-07 | 09:42 AM
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anybody????
Old 03-17-07 | 11:37 AM
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I don't own either of them, but what information are you expecting to hear that can't be figured out using math?
Old 03-17-07 | 12:23 PM
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the 4.3 has 10 on the pinion and 43 on the ring. the stamping on it is P0A2. ill trade you my 4.3 for your 4.5
Old 03-17-07 | 08:46 PM
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well the 4.55 is a very unique set up for the FD i am guessing it is either an aftermarket s2000 ring and pinion or custom made
Old 03-17-07 | 10:11 PM
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its probably aftermarket from japan, there are a few companies that make it. iirc the s2000 ring and pinion will not fit the fd. or it could possibly be an rx8 ring and pinion, i heard those fit

Last edited by azn akira; 03-17-07 at 10:32 PM.
Old 03-18-07 | 03:00 AM
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Never heard of 4.55 for FDs but I could be wrong
3.9 auto
4.1 manual
4.3 rs rz rsr
4.77 aftermarket

u sure its right teeth count?
Old 03-18-07 | 06:19 AM
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There was a 4.44 offered on Yahoo quite some time ago. No idea if it was something modified to fit, it was attracting quite a few bids.
Old 03-18-07 | 06:45 AM
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Where can you find a 4.77?
Old 03-18-07 | 12:36 PM
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azn akira's Avatar
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re amemiya and feed plus a couple others make 4.77s
Old 03-18-07 | 01:39 PM
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anyone have some links or info about companies that may offer other gears??
Greg
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