02a/O2A Gearing/Gear ratios, $Prices$, and other helpful hints

[brilliantyellowg60]

bump for one of the best threads EVER, thanks Frank this just helped me a bunch

[.:Ryan]

Where can you find the transmission code on the actual transmission?... for an 02A

TIA

[brilliantyellowg60]

its on the top near the front

its on the driver side of the bellhousing->gearbox seam

should be stamped into the flat area, it's probably covered in grease

[.:Ryan]

Does anybody have a picture of it? I'm a newbie to this, so i'm having a rough time. :\

[brilliantyellowg60]

Quote, originally posted by SSjetta »

Does anybody have a picture of it? I'm a newbie to this, so i'm having a rough time. :\

[Rocco_Phil]

Thanks for that. I am trying to get a guy to check his 02A code and I wasn't sure where it was (since I am only familiar with 020's).

[widened_mudwings]

Quote, originally posted by brilliantyellowg60 »

bump for one of the best threads EVER, thanks Frank this just helped me a bunch

I'll second that!

Are we sure that 3.778 is the lowest 1st available for the 02A/02J?

And does anyone have a part number for the .658 5th? Or more importantly, the corresponding spring washer that holds it down?

[G60ING]

Quote, originally posted by widened_mudwings »

I'll second that! Are we sure that 3.778 is the lowest 1st available for the 02A/02J? And does anyone have a part number for the .658 5th? Or more importantly, the corresponding spring washer that holds it down?

Its is somewhere in this long thread...TDI people are very long winded:
http://forums.tdiclub.com/show...=gear

Please post the part numbers if you find them. But I think that the part numbers can not be ordered from the USA

[gruppe_a]

Already ordered the .658 from Adrian over at TDIclub... if the part numbers come with the part I'll post 'em!

And I'll probably just machine down the spring washer from any old 02A. How hard could that be?

[all-starr-me]

Quote, originally posted by widened_mudwings »

Are we sure that 3.778 is the lowest 1st available for the 02A/02J?

I got a 3.3X from a 1.8t 02J box in the one I'm building

[gruppe_a]

Nope, that's a higher gear.


Modified by gruppe_a at 5:03 AM 2-17-2006

[G60ING]

this is where your transmission code is if its o2a or o2j







You might need a wire brush to clean off the crude to read the code



Modified by G60ING at 9:51 AM 6-19-2006

[dieselgti]

Quote, originally posted by G60ING »

If you desire to learn about how the different gearing will affect your car at different MPH and RPMs then this is a very good gear calculator. Download the Excel speed gear: calculatorpage: http://www.merkurtech.com/merk...n.php

Great post! How do find out what rear end axle ratio you have? It's for a 1990 G60 Corrado (stock tranny).

[G60ING]

rear end ratio is the final drive otherwise known as the ring and pinion.

Why do people post a question and then IM the same exact thing

[dieselgti]

Quote, originally posted by G60ING »

Why do people post a question and then IM the same exact thing

Sorry, I IM'd you first then I figured it might be something that someone else would like to know also.... My bad!

[G60ING]

no worries I'm just in a crankie mood

[G60ING]

______1st___2nd____3rd___4th___5th___R&P___Notes
CDA 3.300 1.945 1.308 1.029 0.837 3.68 European Golf III 2.0 16V (ABF motor)

[G60ING]

Pulling the 5th gear:

I pulled my DZSL SLC's 5th gear last night and it was easy but I've done it several times now. Last night I modified my craftsman gear puller a little more and I think I have made it very simple to do everytime now. Also I will add that I applied heat with a heat gun for a few minutes after I had the gear puller in place and ready to crank away.

the .756 5th gear:

[G60ING]

Comparison of a Quaife and a stock diff



This is the pic that shows how a person can tell if their transmission has a quaife in it if the can't drive it: Notice the output shaft's end is different from the stock diff






Stock diff's rivets and the the OEM bolt kit that was used on my quaife...I do not know the part numbers for the kit but somebody told me it was an OEM kit:

[CDJetta]

I always thought i had a CCM tranny but now i'm doing a tranny swap and I have a CHM tranny. What are the ratios for that tranny? I'm swapping in a CCM so it doesn't really matter but i'd like to know how much of a difference i am getting in gears.

[G60ING]

Quote, originally posted by CDJetta »

I always thought i had a CCM tranny but now i'm doing a tranny swap and I have a CHM tranny. What are the ratios for that tranny? I'm swapping in a CCM so it doesn't really matter but i'd like to know how much of a difference i am getting in gears.

No idea. Take it apart and count teeth or send it to me and I'll count them. What happened to the old transmission?

[CDJetta]

Oh nothing. I just bought a used tranny with a peloquin in it so that it was ready to swap in in one day. It's sitting in my garage right now.

[CAUTIOUS]

good information thread

[whitedog]

Here is the post with those part numbers.

http://forums.tdiclub.com/show...t=233

Now if there was just a gathering of which gears can be swapped between which transmissions. 02J, 02A, 02O, 02M, etc. I have been able to find gear ratios and speed/RPM calculators, but I havne't found which trans have swappable gears.

Any help?

[G60ING]

austin neuschafer
thanks for the CRU update

[G60ING]

Quote, originally posted by psykokid »

AFE is from an b3 passat, same ratios as an AGC, only variant in the ratios depends on build date. all the ratios are the same. they changed the number of teeth on the individual gears between the early and late boxes (40/19 for early, 36/17 for late) but kept the same ratio 2.1 for second.

[PBWB]

Quote, originally posted by whitedog »

Now if there was just a gathering of which gears can be swapped between which transmissions. 02J, 02A, 02O, 02M, etc. I have been able to find gear ratios and speed/RPM calculators, but I havne't found which trans have swappable gears. Any help?

bump and I need this info also for my ATA o2a tranny. I need to know which 5th gears I can go with from which TDI trannys.

[G60ING]

You can use any Mk3/mk4 TDI 5th gears. Do a quick search and you will see an old thread in the manual transmission forum for 02A gearing and you will see TDI 5th gears talked about

[PBWB]

Quote, originally posted by G60ING »

You can use any Mk3/mk4 TDI 5th gears. Do a quick search and you will see an old thread in the manual transmission forum for 02A gearing and you will see TDI 5th gears talked about

I did a search but couldn't really find anything that was specific as far as which TDI trannys I could use. Thanks though!

[G60ING]

Quote, originally posted by PBWB »

I did a search but couldn't really find anything that was specific as far as which TDI trannys I could use. Thanks though!

I must have been asleep when I wrote this because this was the thread I was reffering too. But you can use any Mk3 or Mk4 TDI 5th gear and even the .68, .72 and .65 5th gears that TDI club people have been buying

[brilliantyellowg60]

Bump for a thread I use all the time

[o2bad455]

I want to put together a 95 VR6 CCM tranny for a race car.

I have an AGC from a 90 Passat 16V, which should have a 3.94 R&P. Should that 3.94 bolt into the 02A VR6 box?

I was also thinking about using a 4.23 R&P from a 2.0L 02J box. Should that 4.23 bolt into the 02A VR6 box, and if so, should I order an 02A or 02J TBD (Peloquin or Quaife) to go with it?

Please note that the ruleset that I'm working under requires that I use the OEM 02A gears, except for the R&P and diff. I must also use the 02A case. Thanks

[CorradoTJR]

i dont know to much about ratios etc.
but does anyone have an idea of how to get
the best traction and eccel with 260whp...
just a thought??

[1sickrado]

word!

[G60ING]

Quote, originally posted by CorradoTJR »

i dont know to much about ratios etc. but does anyone have an idea of how to get the best traction and eccel with 260whp... just a thought??

awd or driver school