

| 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)
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