Originally posted by Terry Haines:
With respect to our Foci members (yes I do those too at HMS Inc) The clutch res on a Contour /Cougar shares with the brake, no ATF in the hydrauic clutch system.The stoc Focus MTX75 diff gears are the same as the pre 2000 cable shift Contour/cougar MTX75 and are not as beefy as the rod shift MTX75 or the V6 post MTX75 diffs.I work on MTX75 transmissions every day,with 14 Focus new trannies (MTX75) in the shop right now I think I know what I'm looking at.Its only a matter of time ,with power increases etc, before one of the side or planet gear teeth in the diff will let go.If you dont beleve me you are welcome to vist my shop and inspect the 'MTX75 'Death Row' or talk to the CEG's who were at Spring Zing where I took parts from 'grenaded' diffs!!!...its just a matter of time..... 
Terry, not doubting you in anyway. infact, with more power, i do not doubt the stock diff will end up granading on me sooner or later.
Although, the slip/dump methond is the most driveline friendly method of launching the car and only pushing maybe 140fwp currently i(personally) do not see it being a huge risk for the trans in the very near furture.
Doesn't really matter, i have a new trans(11,00kms highway) quaife, 4.06 ring gear and pinion and a FS flywheel going in in the next few days.
I'm thinking about cryo treating the gear set though.... any comments on that terry?
Good, bad?
