View single post by Judson Manning
 Posted: 12-30-2008 03:03 pm
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Judson Manning



Joined: 03-14-2005
Location: Atlanta, Georgia USA
Posts: 406
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 I should clarify and say my Getrag 235/5 was sold as little more than a box of partially usable parts.  In good condition this highly exotic and rare transmission should sell somewhere in the $2,000.00 range.  Newly rebuilt, five grand is not out of the question given the exotic and rare factors.

The 235/5 IMHO is only second to its successor the 262CR found in later grey-market BMW 5-series cars.  One could argue the 262CR (much like late model BMW transmissions) with its 3.7 first gear really isn't a CR transmission even if 5th gear is a 1:1.  BMW adoped the 1:1 final/direct drive because as Bill points out going through the helical gears robs power and fuel economy.

For racing applications the fastest way to get on the track and be competitive is to utilize the 235/5 as Ron Earp did with his ITS car.  The ultimate no-compromise racing box would resemble a Hewland with straight-cut gears, etc., and will probably set you back $10k and six months in engineering time - consider the 235/5 a real bargain!

For a street car one can't just bolt on a 15-20% OD to an otherwise stock, high revving JH engine.  If you want some overdrive, but don't want to spend $5k rebuilding your engine the 235/5 (used with the 3.45 axle) will retain the high-revving charisteristics of the car plus deliver about 8% overdrive.  Again, the 235/5 is a real bargain in terms of total cost.

Judson