7a --> Abc

[R5T]

Morning all ..

Just a short and sweet, nothing complexed.

Will the gearbox and centre diff from a 7A Quattro, fit onto a 2.6 ABC Quattro with out any modifications ? .. If not .. Is the centre torsen diff the same ? And if so, is it easier to just remove the diff from the back of the box as apposed to dropping the whole g/box ? .. Will the centre diff from a 7A fit into the back of my ABC's gearbox ?

Any help appreciated

Sam


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[caterpillar]

the bolt pattern are the same in both.. change the complete unit... BUT minor things may be different.. i dont know WHAT gearbox you will put in.. and the gearbox DO have a gearcode stampet in; by the 2 upper bolthole in bellhousing.. ( fx AHA 12345 or CBL 34567).. its the year and ratio... open the tranny, filled with oil are some greasy job..and there are 5 or 6 different thorsen unit in gearbox..i dont know if they are interchangable.

[R5T]

Thanks for the reply ! I'd assumed from previous research that the bolt pattern would fit, I was more worried about g/box mount locations, and wether the overall length of the box (engine-back) was any different ? Wether the prop would still be the right length. And what about d/shafts ? I know there is a difference between 5/6 cylinder shafts isn't there ?

Sam


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[caterpillar]

you dont teel what box you have, and what tranny you will change too... the inner yoke on the box are intercangable...you have a 5tr box, and want the 6tr box??? or.. gearcode??

[R5T]

I currently have a 93 80 2.6e Quattro 5 speed. I'm looking to change the gearbox to a box and centre diff from a 5cyl 7A 5speed Quattro gearbox. I haven't got any box codes as of yet.

Sam


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[andy10v]

Are cq not 4.11 and v6 80s 3.89?

[R5T]

I have no idea ?

Sam


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[caterpillar]

trannycode

Are cq not 4.11 and v6 80s 3.89?

need the gearcode to verfy that...they might have the same...

[Sleeper_Avant]

7a ratios

01A 5 speed, Codes ASZ (11/1988 to 10/1990) or AXM (from 10/1990)
final drive - 37 : 09 = 4.111
1st - 39 : 11 = 3.545
2nd - 40 : 19 = 2.105
3rd - 40 : 28 = 1.429
4th - 35 : 34 = 1.029
5th - 31 : 37 = 0.838
reverse - 35 : 10 = 3.500

[_ShurikeN]

ABC (2.6): CDV 4.11 3.545 1.857 1.300 1.029 0.838

3.89 FD is only AAH (2.8)

[Sleeper_Avant]

as ive said previously,

the rest of it should all bolt up fine, mounts etc

and front diff flanges just unbolt with 1x allen bolt in the centre

Box will be the same length etc

[R5T]

Brill. Will email you Sean !

Sam


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