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Subject:Re: Ring and Pinion Wear
From:Mark Fisher
Date:Thu, 2 Sep 1999 23:39:39 +1000

Derek,
I'm in Australia. My Syncro is 10/90 model.

Cheers

Mark
At 09:08  2/09/99 +0000, you wrote:
>Don't all syncros after 1988 also have 4.86 gears? Isn't 4.86 universal for
>all stock syncros of all years in North America?
>
>At 11:26 PM 9/1/99 -0400, you wrote:
>>Mark-- Most US vanagons and all syncros before about 1988 came with a 4.86
>>ring/pinion, henceforth called a 7 tooth (on the pinion) and the later units
>>came with a 4.83 R&P which has 6 teeth on the pinion. 75% of the early 7
>>tooth units are fine even after 200,000 miles. OVER 50% of the later 6 tooth
>>units I rebuild are bad---primarily, I believe, due to tooth loading and poor
>>heat treating (no scientific evidence to back that up). They wear at the root
>>of the teeth almost identically on each one. What can I say...same vehicle-
>>different ring/pin ----one will always wear-one wont.
>>I am a strong believer in Redline gear oil for these transmissions--they
>>shift better and stay cleaner and wear better with it installed. The $40 to
>>$60 for it is well worth it. Good luck Mark-I assume you got my post 2 days
>>ago re $$ of parts.
>>Daryl, AA Transaxle
>>aatransaxle.com
>>1-877-377-0773 toll free
>
>_______________________________________________
>Derek Drew                                            New York, NY
>CEO, ConsumerSearch
>drew@interport.net
>
>212-580-6486
>917-848-6425 (cell; this phone is a reliable way to reach me fast or to
>leave messages)
>
>Alternate numbers for the industrious phone caller that wants to try every
>avenue: 202-966-7907 (Work), 212-580-4459 (Home), 202-966-0938 (Home)