FAQ

[porkchop_man]

Are the 02A and 02M transfer cases different? are they equaly as strong? I am currently using a 02J in my mk3 with a 6 speed SQS dog gear set.. i want to reuse those gears for my haldex swap. Would i be able to stuff all that into a 02A syncro case minus the diff obviously.

[VRT]

You will need a 02c tranny from a passat. 02M is completly diffrent. The problem that you will find yourself in is if your doing a haldex swap thenyou will have to find a transfer case from a Skoda Octivia (very hard to find)

[porkchop_man]

Well, my plan right now is to throw my dog gears into a 5 speed TTQ case with a new peloquin, should do the trick i believe. It's based on the 02J correct?

[VRT]

Nope will not work.
It's still a 02m style tranny just 5 speed

[porkchop_man]

ok, i understand i'll have to run the octavia angle drive with the haldex rear end to match the gear ratios. If i change the ring and pinion will it not throw everything off?

[tomtomdabomb74]

where are the vacuum sensor for the actuating center and rear diff locks? stoped working on the way home from buying. its a 84' 4kq

[chois]

Q: Has anyone ever tried to use the audi tt rear beam and trailing arms (independent multilink) on a mk2/3 for a haldex swap? Would it still work correctly if it had to be shortened to fit under a mk2/3? (i.e. make the links shorter)


Modified by Sleeper-Dub at 4:35 PM 12-9-2009

As noted in other responses - fabrication required:

http://forums.vwvortex.com/showthrea...dex-no-synchro

[Issam Abed]

This thread is in dire need of some consolodation / organisation.....
MKIV Chassis w/ MKIV Rear Haldex - if you do not want to use an 02M transmission , you can use an 02C gearbox but you will need a transfer box from an FEX Gearbox.
I recently got my hands on an FEX gearbox (Skoda Octavia 4 x 4 gearbox). Gear Ratios are as follows.

• Final Drive : 3.94
• 1st Gear : 3.77
• 2nd Gear : 2.06
• 3rd Gear : 1.36
• 4th Gear : 1.03
• 5th Gear : 0.838

This is the Gearbox you need if you want to perform a Haldex conversion into a MKII , MKIII or MKIV chassis and do not want to use an 02M gearbox (i.e. staying in 02A / 02J / 02S family).
FEX gearbox comes with 27/17 tooth count for the angle drive which will match the 17/27 tooth count on the MKIV Rear Haldex differential.


02C - VW Golf Rallye / VW Passat Syncro = 21/20 tooth count on the angle drive & syncro rear differential has the opposite = 20/21
You can NOT mix a 27/17 angle drive with a 20/21 rear differential and similarly you can not mix a 21/20 angle drive with a 17/27 rear differential. If you plan on using an 02C gearbox in a MKII Chassis w/ a Haldex rear differential then you are going to run into problems.

Why use an 02C/02J/02S box still? Gear ratio's and combinations are endless compared to 02M.

[JES_rides]

Sorry if this was covered elsewhere, but I ask this here as I go off to research it in the search tool.

I just bought a pair of Jetta's (with the 2.5 I5's) and I'm looking into converting them to 4motion AWD.