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Thu Jan 20, 2011 6:52 am

Hi All,
I know that this is an old subject, but a visitor today mentioned something about a replacement end cover for the 016 trans, that had a train of 3 gears inside, to reverse the Audi box when installed in a rear-engined bus.
It may have used a quattro box converted to 2wd as a means of driving these new gears, not sure.
He thought that it may have been by ha-projekt in Germany, but there's no sign of it on their website...
Ring any bells?
Thanks in advance, I have a plan to build a road-going "quattrobus" with a 5 cyl engine, but if I have to ditch the quattro system just to get the audi box to work then it's a bit self-defeating!

Thu Jan 20, 2011 7:33 am

I think he is remembering a one off project that reversed an Audi automatic transmission (ZF 5HP24) by modifying the transfer gear arrangement at the end of the transmission to spin the short final drive driveshaft in the opposite direction. It was discussed on here quite some time ago.

The manual Audi transmissions are not configured this way, so there is no way to reverse them short of flipping one upside down.

David

Thu Jan 20, 2011 7:52 am

D Clymer wrote: I think he is remembering a one off project that reversed an Audi automatic transmission (ZF 5HP24) by modifying the transfer gear arrangement at the end of the transmission to spin the short final drive driveshaft in the opposite direction. It was discussed on here quite some time ago.

The manual Audi transmissions are not configured this way, so there is no way to reverse them short of flipping one upside down.

David
How about flipping the diff? or is that impossible in those boxes?

Thu Jan 20, 2011 9:18 am

I understand that the earlier 016 can have the diff flipped but it still needs a new cw/p to account for the gears going from high to low hypoid position (or vice versa) other wise the meshing is all wrong and it will be very noisy. Or just break.
Some work has to be done to the diff bearing housings as they are different diameters too.
I'm really just trying to replicate what subarugears have done with the Legacy/Impreza transmission but to go all-VAG and AWD in one hit, without the expense of a Porsche Carrera4 trans.
Has the Audi box ever been sucessfully reversed yet?

Thu Jan 20, 2011 10:12 am

We looked at it on the french forum.

The ring and pinion is hypoid,so you can't flip it.sorry.

Put it upside down,they were doing that back in the days,but doesn't worth it....

Bye!

Fri Oct 21, 2011 4:59 am

silverbulletuk wrote: I understand that the earlier 016 can have the diff flipped but it still needs a new cw/p to account for the gears going from high to low hypoid position (or vice versa) other wise the meshing is all wrong and it will be very noisy. Or just break.
Some work has to be done to the diff bearing housings as they are different diameters too.
I'm really just trying to replicate what subarugears have done with the Legacy/Impreza transmission but to go all-VAG and AWD in one hit, without the expense of a Porsche Carrera4 trans.
Has the Audi box ever been sucessfully reversed yet?

Have you given up on this? I just got back from India and spoke to a gear manufacture about this very thing, Pricey but very do-able on the auto box, there is one solution for the manual another.

Fri Oct 21, 2011 5:48 am

I was just thinking about this again today (you need to dream...)
I need to get my hands on an 80/90/100/200 quattro gearbox and get the front diff stripped out and see what the clearances are like etc. Not scared of making a new side cover/bearing housing or getting a new ring and pinion made locally (would be $$$ though) but I need to see if it's remotely feasable.
Running a gearbox upside down is NOT an option, it's just wrong and you wouldn't find it on any of my buses. Ever!
OK there's always the UN1-7 quadra trans but I'm not mad about chopping the bus around to make non-VAG parts fit, but that's just me :wink:

Fri Oct 21, 2011 12:55 pm

I am leaning towards an automatic conversion and rather than having something that eliminates the idler gear to reverse the direction of the trans. I contend adding a second OEM idler would be the better course of action and I am having a new housing machined. I will post some pictures when I get the housing from the CNC mill

Fri Oct 21, 2011 1:08 pm

Very cool. I'm also interested in an automatic trans option

Sat Oct 22, 2011 2:31 am

I'd also like to do a quattro under a vanagon 2wd with an audi trans and 5 cylinder....but not sure how to go about it. The 016 has been extremely reliable in my Audi 4000 Quattro though so if there was a way to use it I would be all for it.

Greg

Sat Oct 22, 2011 1:31 pm

Just to correct,it's not the UN1-7 for the Quadra Renault transmission,it's a UN7 :wink:

Tue Nov 01, 2011 5:28 pm

Has anyone considered reduction boxes? maybe custom heavy duty one would hold up better than stock

Mon Feb 19, 2018 8:37 am

Reviving an old thread. So I’m working on a TDI conversion with the AUDI transaxle. Question if you get a ring and pinion gear set machined 180 degrees opposite of original will it reverse the transaxle?
Thanks in advance

Mon Feb 19, 2018 8:57 am

Your best bet with the Audi manual trans is to either flip the entire trans or reverse rotate the engine. Flint is working on a reversed rotation TDI to accompany his 1.8t projects...we're all waiting with bated breath for this option to emerge.

Mon Feb 19, 2018 9:16 am

I have a flipped trans but that reduces ground clearance quite a bit. I found a gear manufacturer that will cut the gears I just want to make sure that if they are cut 180 degrees opposite of original it will reverse the transmission.
Thanks

Mon Feb 19, 2018 10:24 am

well it's not likely to work quite like you are thinking.

there isn't the space in the Audi transaxle to put the R&P on the otherside of the diff. like the subaru gears and early beetle transmissions do.

Mon Feb 19, 2018 10:57 am

So even with the reversed cut gears you would also have to move it to the other side? That’s what I needed to know. I knew you got a new ring and pinion with Subaru gears didn’t know you had to move it to the other side.

Mon Feb 19, 2018 11:17 am

http://www.subarugears.com/About/About.html

Sat Jul 28, 2018 9:28 am

Reverse the engine rotation?

Sat Jul 28, 2018 9:47 am

The man. The master. The legend.

http://www.flinteuropean.com/