2.6 and 3b gearbox are they the same

[220bhp]

Can anyone tell me if a gearbox from a 2.6 v6 cabriolet is the same as a 3b. Are they interchangeable, and are the gear ratios the same.

[spink]

no they aren't,the v6s have the final drive of 3.89 instead of 4.11 which you need

[Audi_CQ]

Can anyone tell me if a gearbox from a 2.6 v6 cabriolet is the same as a 3b. Are they interchangeable, and are the gear ratios the same.

Cab is FWD and 3B (code ARV) is Quattro so different type of gearbox.

[shaun5]

Ok a new twist is a 2.6 quattro gearbox the same as a 3B?

[spink]

Cab is FWD and 3B (code ARV) is Quattro so different type of gearbox.

lol,yeah true but Im sure he meant 2.6q (Lou?)

Unless he wants to use parts from inside the 2wd to repair the arv

[Vorsprung durch Technik]

Why not,... everyone else is. What's the difference bewteen a fwd 2.6 avant gearbox and 2.8 1999 caby gearbox? Different codes?

[caterpillar]

look to the left or around the 2 upper boltholes in BELLhousing.... you will find a code stamped in... ; CBL 12345 or DFW 34567.... and tell us.. so will the year and RATIO in finals come thrue...
have you a Q car, you need the same in front AND rear end...

[_ShurikeN]

2.8Q is 3.89
2.6Q is 4.11

[caterpillar]

need gearkode to verify THAT....the car may be maufaktured for anothe country, then another ratio...and there are ALOT of trannys to the same car....

[_ShurikeN]

Sure. Besides, there is a small possibility that transmission has been replaced by some previous owner.

[gripper]

So a Quattro gearbox from a 2.8 or 2.6 AND matching rear diff will physically fit ?
What's the real world effect of having a 3.89 final drive compared to the S2 one ?

[caterpillar]

yea it corekt. if you DO have the gearbox and rear di; it will fit.... what chassi do you have....small chassi ??
if you use the 3,889, you will save some fuel,the car arent so "crispy"... slighly slover , but higher topspeed...
have you the torque over 500Nm or MORE i would used the 3,889...but its not MY car...

[_ShurikeN]

3.89 gives more comfort for highway cruising rather than good acceleration of 4.11. So the choice would depend on the area, where the car is driven more often (city or highway). Generally, It is for each person's taste.

[_ShurikeN]

2.8Q is 3.89
2.6Q is 4.11

Looks like it is incorrect indeed. Got some info that 2.6Q is 3.89 also.
1. A scan of UK Brochure with data.
2. My friend has recently bought 80 ABC quattro sedan and it shows higher speed than my NG quattro coupe on the same revs.

UPD: My mate's ex-german 80B4 ABC saloon turned out to have 4.11 (CDV gerabox and AZC rear diff).