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FD 5th gear grind

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Old Jul 30, 2011 | 09:44 PM
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RED 94 FD's Avatar
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FD 5th gear grind

On my 94 FD 5th gear grinds a little when shifted fast. I have to rev match for a smooth shift. I have a good clutch and new 75/90w non synthetic gear lube. Is this generally fixed by installing the updated 5th gear syncro?
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Old Jul 31, 2011 | 01:25 PM
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needs more track time
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Generally yes.

Redline MT90 or MTL is usually a good interim step and often helps compared to non-synthetic trans oil and much better than gear lube.
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Old Jul 31, 2011 | 03:13 PM
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where can you buy redline mt 90? what about mobil 1 75 90 synthetic lube? i know where to buy that.
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Old Aug 1, 2011 | 12:08 AM
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From: reno nevada
Summit racing carries it. Im lucky enough to have one locally otherwise you may have to order.
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