Please help determining suitable 01E transaxle (sorry)

Hello All,
I'm really sorry to rase this all over again.

My problem is that I've found a web site where one can order Audi boxes from dealer. When I reqest
information for transmission (2000 A6 for example) I get 2 boxes (5 and 6 speed)and numerous part numbers for both:

6 speed transaxle:

> 01E300047L
31/8 1 FRL,FPN
01E 941 521 1 FPN

# 01E300047LX
31/8 1 FRL,FPN
01E 941 521 1 FPN

> 01E300049
31/8 1 GBA

# 01E300049 X
31/8 1 GBA

> 01E300047G
31/8 1 FRG

# 01E300047GX
31/8 1 FRG

> 01E300048T
31/8 1 GAZ

# 01E300048TX
31/8 1 GAZ

> 01E300049G
31/8 1 GEA

# 01E300049GX
31/8 1 GEA

> 01E300049S
31/8 1 HES

# 01E300049SX
31/8 1 HES,GEA

01E300047F
31/8 1 FRF
01E 941 521 1


Than there are several 01X boxes - about 10 of them

And 6 OA2 boxes

Now I'm really confused with so many part numbers - what is the difference between them?
Which one to choose so it was used on the more powerful version?

Another question is about 012 gearbox.

How weake is that? Sorry, I forgot to mention that I'm looking for boxes for my own car project.
There will be two versions 250hp(240lb/ft) in 800kg car and 400hp version 900kg

So I was thinking - will it be possible to use 012 gearbox in 250hp version?

Situation with 012 is not any better - about 40! gearbox numbers offered /ubbthreads/images/graemlins/shocked.gif

All the above is for 2WD boxes only - millions of numbers for 4WD...

Thank you
Tudor Miron
 
Have a look at this site, the code letters can be made out, it also lists the vehicle it was used in, I would go for the biggest engined version using the box you require.

web page

Cheers
 
Thank you Joe,
How ever I'm having problems with that site. For example looking at 2496mm^3Audi A6: Gearbox numbers are: 01EL 01EP 01E2 .... Only similarity with Part numbers that I've found is 01E than there is L or P or 2.... In my case there's 01E 300047LX...

I understand that I must be missing something very obvious. Sorry for such dumbness.

Thank you
Tudor Miron
 
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