Fourtitude.com - 4k or 2y trans for 2.0 16v
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    1. Member eurodezign's Avatar
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      BMP R32, 2001 S4, (2) 92 and (3) 93 raddos,TDI Jettas and Golfs for days, 87 16v Gti
      11-27-2001 10:54 PM #1
      who has had both and what do you like best???

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    3. 11-28-2001 10:20 AM #2
      From what I hear, the 4K has additional internal bearings that the 2Y lacks. Otherwise, they're identical except for a minor final drive variation - 3.94 vs 3.89
      In any case, get the 4K rebuilt with a bolt kit and add a .75 5th gear if you want to drive it on the street and retain your hearing/sanity.

    4. Member vwpat's Avatar
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      11-28-2001 02:41 PM #3
      quote:
      From what I hear, the 4K has additional internal bearings that the 2Y lacks. Otherwise, they're identical except for a minor final drive variation - 3.94 vs 3.89
      In any case, get the 4K rebuilt with a bolt kit and add a .75 5th gear if you want to drive it on the street and retain your hearing/sanity.
      I think you mean a 2H. 2Y is 16V tranny and is lightly stronger than 4K. Other difference is the diff, 4K has 3.94, 2Y has 3.67.

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    6. Member SCHALTHEBELKNAUF's Avatar
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      11-28-2001 03:10 PM #4
      the fith gear is slightly different as well, the 2Y has a .91 and the 4K has a .89
      Cesar

      2013 Golf 2.5

    7. 11-28-2001 07:14 PM #5
      Ive had both, I have a 4k right now in my 2.0 16V but im going back...it all boils down to whether you prefer acceleration or top end speed. I sure miss my freeway power.

    8. Member eurodezign's Avatar
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      BMP R32, 2001 S4, (2) 92 and (3) 93 raddos,TDI Jettas and Golfs for days, 87 16v Gti
      11-28-2001 09:59 PM #6
      if I use the 4K tranny and put a .75 or .71 5th gear in... shouldnt that give me the short gears for around town then still have the long legs for freeway battles??

    9. Member Kierowca's Avatar
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      11-29-2001 12:41 AM #7
      I just bought a built tranny. 16v gearset with 3.94 ring and pinion, .80 fifth.

    10. 11-29-2001 09:44 AM #8
      quote:
      I think you mean a 2H. 2Y is 16V tranny and is lightly stronger than 4K. Other difference is the diff, 4K has 3.94, 2Y has 3.67.
      Yeah - I always get those confused. It's not like I don't have one of each right now - one in the car and one in the bed of my truck. The 3.67 final drive is nice for crusing but the 3.94 final drive really wakes up the 16v.
      eurodezign hit the nail on the head - the 4K will provide the in-town acceleration to squirt in and out of those holes in traffic with a tall 5th gear will lower the rpms enough to make the car a good highway cruiser.

    11. 11-29-2001 02:44 PM #9
      I don't think the 2H fits in an A2

    12. 11-29-2001 02:54 PM #10
      quote:
      I don't think the 2H fits in an A2
      You are correct, the 2H doesn't have the proper castings to fit into an A2.

    13. Member Fettes Brot's Avatar
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      11-30-2001 01:55 AM #11
      How does an AGB compare to a 2Y and a 4K?

    14. Member eurodezign's Avatar
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      BMP R32, 2001 S4, (2) 92 and (3) 93 raddos,TDI Jettas and Golfs for days, 87 16v Gti
      11-30-2001 06:38 AM #12
      hey AceOvSpadez did you use a .75 or .71 5th gear....if not where did you max out
      speed/rpm???

    15. Member Kierowca's Avatar
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      11-30-2001 07:39 AM #13
      quote:
      How does an AGB compare to a 2Y and a 4K?
      AGB and 2Y are the same trannies except they use different reverse light switches.

    16. 11-30-2001 02:09 PM #14
      original .89 5th gear in my 4K, tops out at around 120-125 at near redline [IMG]http://*****************.com/smile/emthdown.gif[/IMG]

    17. Member eurodezign's Avatar
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      BMP R32, 2001 S4, (2) 92 and (3) 93 raddos,TDI Jettas and Golfs for days, 87 16v Gti
      11-30-2001 06:51 PM #15
      thats not too bad thats what my 2y does now..... [IMG]http://*****************.com/smile/emthup.gif[/IMG]

    18. 11-10-2017 02:41 AM #16
      Hi! I was doing a little research and found your insights...I am building a 2.0 16V 9A, ported & polished, ABF cams on CIS Basic and will be driven daily with occassional track.
      My question is, does the 4K tranny if mated to a 2.0 16v 9A pulls & gives really good around town?
      If I swapped a taller 5th gear for freeway flying, will it change the acceleration of the 4K tranny?
      I am doing this build because I want to have torque and power on all revving range just like the ABF.

    19. Member
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      02-17-2018 10:09 PM #17
      I have a 4K with poor mans posi (pel-o-lok shim kit) and love it. motor was a bit over stock so I would have really liked a taller 5th. Yes it should pull hard around town. I just wanted a little more top end. had a sporty 2.0 swapped it for a tuned up G60, now I'm in the process of building the 2.0 16v for boost with a twin screw and although I have an 02A and 02J I have the clutch and shim kit for the 020 so thats going in for now... That shim kit makes a noticeable difference in power output cornering both cornering and pulling out.
      Last edited by Union Forge; 02-17-2018 at 10:15 PM.

    20. 02-19-2018 07:11 AM #18
      I had the same decision to make with my current 16V truck resurrection.
      Having a 4K and a 2Y on shelf (both with Quaife diffs and stock 5th gears)- I chose the 2Y this time around.
      The fact that I’m also running 195/45-14s makes the effective gearing high enough already.

    21. Junior Member Hossam.Gamal's Avatar
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      07-16-2018 06:46 AM #19
      2y is better than 4k from many ways :

      1- bigger axle flange
      2-larger main shift
      3- best total gear ratios
      4- and best FDR

      best acceleration
      Last edited by Hossam.Gamal; 07-17-2018 at 05:49 AM.

    22. 07-22-2018 09:49 AM #20
      4K is better final drive and slighly tall fifth gear
      4K 3.45 2.12 1.44 1.13 0.89 3.94 Close Ratio
      You can put 100mm flanges on 4K

    23. 07-24-2018 10:06 AM #21
      4k or 2h is the way to go on any na 8v or 16v, .80 fifth gear from the aba trans is the best 5th gear. .75 is too low the shift drop from 7k in 4th brings the revs just below the power band in 5th. you could rev it to 75-8k and that would be better suited, if you have the cams/flow for it. 3.94 r&p ftw

      also don't worry about which is stronger 4k vs 2y na cars don't make enough power to break them, just bad drivers. they will both break at the same power level. weak spot in 020 is the diff rivets and spider gears.
      Last edited by RevolutionMotorsportsCt; 07-24-2018 at 10:09 AM.

    24. Member Dets97GTI2pointOH's Avatar
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      1997 MK3 GTI 2.OH VW
      06-10-2019 09:49 AM #22
      I like pepsi over coke myself.

    25. Member
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      78 & 81 Scirocco 16V, 01 T4 TDI, 07 Avant 3.2
      09-06-2019 07:04 PM #23
      the 2H has 90mm inner drive shafts, as does the 4K. If you want to retain the 100mm inner CV, you will need to swap the 100mm flanges. You can do this to a 4K, but not on a 2H. Technically you can install 100mm flanges on a 2H, but you will need to use the later cases. This is the setup I had, and highly recommend it, but it is a buzz box.

    26. 09-07-2019 06:25 PM #24
      I went for a .80 fifth in my gti box. .75 is just too big a gap between 4th/5th.

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