Re: Car lift installed, now the real work will begin.

acorad Wed Feb 01, 2012 3:21 pm

Excellent, thanks a lot.

acorad Thu Feb 02, 2012 12:09 am

Well, I found the exhaust leak. Blown-out gasket at the driver's side collector flange.

That's one action item off my list!

acorad Fri Feb 03, 2012 4:15 pm

Anybody do a 5th gear swap?

Where did you get a trans cover to replace the one you have to ruin to remove?

Also, where did you get a new gasket for between the two halves of the housing?

fliermike45 Fri Feb 03, 2012 4:42 pm

Ruined cover......how??

You can get a machined cover and stiffener plate from Texas Performance Concepts

acorad Fri Feb 03, 2012 4:51 pm

Mike, it's that little end cover that you have to punch a hole through with a screwdriver to remove in order to get at the triple square bolt.

And there's a paper gasket between the front and rear halves of the trans housing.

Techno Duck Fri Feb 03, 2012 5:18 pm

The rear plug is readily available. There are two different part #'s posted though depending which transmission you have.

[You must be registered and logged in to see this link.]

088-301-467-B-M104 - This is for the non turbo boxes
016-301-467-M100 - This is for the turbo / S2 box

fliermike45 Fri Feb 03, 2012 5:22 pm

Pelican

acorad Fri Feb 03, 2012 5:23 pm

Excellent, order placed, thanks guys.

acorad Tue Feb 07, 2012 1:17 pm

0.68 5th gear from Audi diesel installed:[img][You must be registered and logged in to see this image.][/img]to

docwyte Tue Feb 07, 2012 1:37 pm

Let me know how you like it! How big of a step it is shifting from 4th to 5th and what your revs are at 80mph...

xschop Tue Feb 07, 2012 2:23 pm

Damn, gotta get me a set of those. Looks like they'll clear a reinforcement plate too. What O.D. rear tires you running?

acorad Tue Feb 07, 2012 2:27 pm

doc, will do. Although first I gotta do my clutch, TT, etc.

I was at about 2900 at 70 mph with my turbo 0.83 5th, by my calcs the 0.68 should get me to around 2350 at 70.

Xschop, I'm running 265-35-18's.

docwyte Tue Feb 07, 2012 2:31 pm

With 285-30-18's and a stock turbo S tranny I see 3250 rpm at 80mph. So with that diesel gear I'd be around 2650 in 5th at 80mph.

That would be pretty decent and would most likely get me another 4-5mpg back, so maybe high 20's mpg on the freeway. At least when I'm not towing my tire trailer...

fliermike45 Tue Feb 07, 2012 4:32 pm

Can you please post data concerning which year/model/transmission code that you removed the .68 gear set from?
Thanks.

acorad Tue Feb 07, 2012 4:39 pm

Hi Mike, I think I've posted this about a dozen times already! No worries. Smile

From my research: the swappable 0.68 5th gear is in '80-'82 Audi 5000 Diesels w/trans codes: UF, MN, BMO, WV, UW, MO, MR, AAW, AAV, AAY, AAX, AMM, & AMN.

Dawgz83948 Tue Feb 07, 2012 4:39 pm

fliermike45 wrote:Can you please post data concerning which year/model/transmission code that you removed the .68 gear set from?
Thanks.

It has been posted already. [You must be registered and logged in to see this link.]

docwyte Tue Feb 07, 2012 4:40 pm

And the stock turbo 5th is a 0.83 and the NA 5th is a 0.78 right?

acorad Tue Feb 07, 2012 4:48 pm

docwyte wrote:And the stock turbo 5th is a 0.83 and the NA 5th is a 0.78 right?

Stock Turbo is 0.83, but stock NA is 0.73.

docwyte Tue Feb 07, 2012 4:53 pm

Oh wow, I didn't think the NA was that tall, for some reason I thought it was a .078, so not that different than the turbo gear.

Dawgz83948 Tue Feb 07, 2012 4:56 pm

docwyte wrote:Oh wow, I didn't think the NA was that tall, for some reason I thought it was a .078, so not that different than the turbo gear.

You're right it is .78

acorad Tue Feb 07, 2012 4:59 pm

docwyte wrote:Oh wow, I didn't think the NA was that tall, for some reason I thought it was a .078, so not that different than the turbo gear.

Ya, the difference between the 0.68 diesel and the 0.73 NA 5th is about 200 rpm at 70 mph by my calcs. There is a 0.64 in Europe, apparently. Probably worth about another 100 rpm at 70 mph.

acorad Tue Feb 07, 2012 5:00 pm

Dawgz83948 wrote:
docwyte wrote:Oh wow, I didn't think the NA was that tall, for some reason I thought it was a .078, so not that different than the turbo gear.

You're right it is .78

I've been going by this link, it shows 0.73, is it wrong?

[You must be registered and logged in to see this link.]

Dawgz83948 Tue Feb 07, 2012 5:06 pm

I think it is wrong. I need to look at the Service manual again to be sure.

docwyte Tue Feb 07, 2012 5:15 pm

OK, that's what I thought. An improvement over the stock turbo gear, but not a whole lot different. A 0.73 would probably be a great 5th gear, too bad there isn't one made.

We either can get an NA 5th for a slightly taller gear, or the diesel gear for a super tall gear.

acorad Tue Feb 07, 2012 5:22 pm

Dawgz83948 wrote:I think it is wrong. I need to look at the Service manual again to be sure.

Let me know what you find out, if the NA really is an 0.78 I'll feel even better about finding the 0.68!

Car lift installed, now the real work will begin.