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Old 05-15-2014, 10:45 AM   #6
steved0x
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Join Date: Dec 2012
Location: FL
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Quote:
Originally Posted by NoMoreVWs View Post

Which model year is least prone to this ims failure?
The dual row is more robust than the single row. The single row started to be introduced late in calendar year 2000? Others can chime in, but I believe all 97-99 Boxster had the dual row, some 2000s, and possible even some 2001s. After that they had the single row. And earlier cars that had engines blown and replaced by Porsche would have gotten whichever bearing was current at the time.

I got what I feel was the best of both worlds, 2000 S with dual row.

This article has more details but really the only way to tell 100% is to drop the transmission and take a look.

IMS 101

Steve

Edit: however if you get a car with the single row there are several choices available for retrofits, the IMS Solution, and there is also now a dual row bearing retrofit for single row cars, both developed by Jake Raby, details at the site linked above. I personally have their dual row ceramic retrofit.
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