The Ultimate Transmission Thread... Brainstorm Ideas Here!

[Gro Harlem]

Non-the-less, new stock shitty sychros should be good for at least 75k hard miles.

I dunno about that. The transmission currently in my MX3 I pulled from a 93 MX-3 SE I saw that had 58,xxx miles on it. I figured "wow, it must be in good shape with such low miles" & the car wasn't modified or anything.

Installed it....and lo-and-behold....the 3 & 4 gear synchro is fux0red .



BTW: just curious...when you put your ZX2 gears & synchro's into your trans, did you get new 99+ ZX2 SR synchros? Or did you just install the used ones?

[Fastest95PGT]

So lets say we stick to the DOHC until someone confirms the SOHC internals will fit (and if it's weaker or not). I wonder if anyone here has used a 99-03 one or if you've all used the 98 one.

BTW: just curious...when you put your ZX2 gears & synchro's into your trans, did you get new 99+ ZX2 SR synchros? Or did you just install the used ones?

So without anyone responding to my question.. it appears that 99+ are different than the 98.

So we should be looking for a 1999+ Transmission only.

[Dubbed]

No the 98 will work fine since it's 1998-2003 tranny's are all the same on the ZX2 DOHC engines. I just got one from a 98 and it looks like it's going to fit.

[Fastest95PGT]

I just got one from a 98 and it looks like it's going to fit.

That's not really good enough for me. Though once you have it installed with the swapped internals it's another story completely.

Can anyone confirm some part numbers that make them the same?.. again, Ford-Parts.com lists the 98 separately from 99-03.

[Snowseeker]

Because cryro doesn't do shit for sychros. Sychros are soft for smooth engagement and even cryro isn't gonna do squat for that.

I am not sure if the part numbers are the same for the SOHC and the DOHC. Check with ford and if they are then you may be good to go but I always use DOHC from 99+.

Sychros are soft so they do not wear on the slide rings. Cryro treating will harden the sychros and slider rings, shafts, bearings, case, clusters, races, forks, rods, diff, spiders, and oh yes, even the junk probe spider pin.

[Gro Harlem]

actually the 97+ will work....i've yet to confirm a difference between the SOHC and DOHC but cross-referencing the tranny part numbers & other parts will confirm that.

but the ZX2's (all of which have the dohc zetec) all used the same transmission from 97 up. THe 99+ apparently had the different synchros.

And btw...my ZX2 SR trans looks mint as well...the brass synchro's show no signs of wear. It'll go in within a couple weeks once I get my limited-slip ready.

[ProbeGTC]

Ugghhhhh! Brain...Hurts...No more numbers...

[UKZXTWO]

Hey guys new here. I noticed a lot of you guys were equating the Escort and Focus trannies. They are not the same. The Escorts use the G5M with a 4.10 final drive. The Foci use the MTX75 as everyone knows. Our trannies are not that strong either. There is a new tranny that a ZX2 shop makes that will solve a lot of our problems, and some of the components may help the Probes out too.

http://www.zx2racing.com/store/close...id=58&offset=0

http://www.teamzx2.com/index.cfm?fa=...ew&board_id=11

There are a lot of intelligent people on the forum, and most people are willing to help anyone out.

[Fastest95PGT]

http://www.zx2racing.com/store/close...id=58&offset=0

lol, that's more than my 2g's worth! Thanks for chiming in though.

[kornyguy95pgt]

yeah, the zx2 uses a g5m tranny, and the focus a mtx. before some b**** plowed my zx2 with her durango (which I guess is ok, since now I have the probe, and thats why I'm here now) I went through 1 tranny, and the replacement was on its way out. the problem wit the zx2 g5m tranny is in the diff area, I shattered mine, and that was with VERY minor mods. I had I place that was going to fab up the mounts and such to mount the mtx out of a focus in there, which I believe would have solved alot of my problems.
as far as the probe goes, like most people here, I think the gears could be spaced better, and I am about tired of turnin 4000rpm on the e-way. what I would like to find (I know I'm dreamin) is someone who could build a good strong 6 spd. for the probe. it would do alot for gear spacing, and you could get the OD low enough.

[Fastest95PGT]

Good thing we need to keep our stock diff then.. thus getting rid of our crappy spiders and your crappy diff.

[Dubbed]

Well I'm sorry I got so excited about the Focus and Contour stuff I thought it might be the same but since a lot of good info has still come out in this thread I'm happy with the way things have gone. I wonder if you can order the newer syncros from the 99+ tranny and put them in the 97 and 98 tranny's. hmmm... I think I'm going to order the newer syncros and see.

[Flyguyeddy]

ok, so since i got lost reading this tread, what transmission would work to swap gears from, the g5m or the mtx? or does it matter?

(i ask because i am about to buy a probe base with a 2.o and the tranny is royally fooked. i wouldnt mind using the case i have and making the internals good again...) <-- any advice on this? pm me please....

[Fastest95PGT]

ok, so since i got lost reading this tread, what transmission would work to swap gears from, the g5m or the mtx? or does it matter?

This thread has nothing to do with the 2.0L transmission.

[Flyguyeddy]

i dont see why it would be any different....

arent they the same internally? im aware that they dont bolt up to each other...