Hello
In sweden these audi 5 or six-speed gearboxes are common and unexpensive. The older type of 01e that have the cast iron center housing are much stronger than the newer with aluminium center. But the early six-speed before 1994 have a weaker 1st gear that will break if anyone makes drag race tests. Prices for the 01e 5 speed, code CEP, is aboat 500 euro and for the 01e six-speed, code ARX is aboat 600 to 1200euro. 1200 is for a rebuilt unit.
Gear ratios 5-speed code CEP: 189 1,23 0,93 0,76 final gear 3,50
Gearbox ratios 6 -speed, code ARX: 1,89 1,32 0,87 0,73 0,56 Final gear 3,50
There is also another 01 gearbox that are extremely common, called 01p, a 2 piece housing is the biggest difference to the 01e 3-piece hiousing. They are all 5-speed and is mounted in audi 100 with 2,6 or 2,8 v6 engine. Prices for this gearbox code CDX is aboat 350 to 500 euro.
gear ratios 1,89 1,23 0,93 0,76 final gear 3,50
Link to a swedish website with these boxes:
http://www.bildelsbasen.se/asp/partsearch/default.asp?action=list
The length from bellhousing to the center of driveflange on all boxes seems to be 175mm and total lenght varies from 620mm (5sp) and 670mm (6sp).
If you are on a scrap yard and find a audi that you wan´t to identify the year box without getting dirty. Look in the car on the shift knob, the 01e 5 or six speed has the reverse at left/forward all others has the reverse at right/backwards, very simple if the box still are in the cars. Picture of 01p attached
//ingvar