mt 75 5 speed options?

[MARK FRST]

evey one uses a type 9 is there any reason y no one uses the mt over the type 9? i know the 5 speed type nine in basics fits under the standred tunel i have a bigger tunnel fitted as the car was going t5 but im fitting a zetec has any one done a mtx 75 /zetec fitting and what clutch fly wheel combo have been fitted? cheers mark

[emu]

No one uses the MTX75 because its a FWD 'box

 

The MT75 is the RWD one. The type 9 is the straightforward gearbox to sling behind most period engines so I guess that is probably the reason for it being the popular choice. I think the MT75 is quite a bit larger too, which obviously makes it a PITA to fit into the tunnels

[MARK FRST]

sorry my fault put in to may letters lol

[bortaf]

MT75 requires a new prop making with a sliding joint in it, there's no splines on the rear of an MT75 so nowhere for the porp to move to take up the movemnet of the axle (they are designed for cars with IRS and fixed diffs)

I think the extra expense puts people off ?

[MARK FRST]

cheers bortaf that anwsers my qustion

[over_head_cam]

Bortaf is a man that knows stuff

 

Out of interest, are the ratios any good? Has anyone done a fixed diff conversion in anything like an OldSkoolFord?

[bortaf]

Only cos i'm sad and spend hours reading all this stuff on other forums and following other peoples conversons

 

Seen a few Mk3 cortinas with the IRS and MT75

They drive sooo weird (in a nice way) especialy for somone who driven them in normal suss set up for 25 years

Performance classics in Essex do it quite a lot, he uses transit props for the sliding joints that i do know but he's off work at the mo after a motorbike crash (silly cow pulled out on him).

 

Here's all the ratios together so you can have a gander at whats what, i know the diesel boxes had a higher 5th but it's not shown in the list i have

Type 9 (1.6-2.3)

 

1st 3.65

2nd 1.97

3rd 1.37

4th 1

5th 0.82

 

Type 9 (2.8 inc 4x4 )

 

1st 3.36

2nd 1.81

3rd 1.26

4th 1

5th 0.83

 

Type 9 (diesel)

 

1st 3.91

2nd 2.29

3rd 1.38

4th 1

5th 0.82

 

MT75 (2.0 DOHC and 2.4 V6)

 

1st 3.890

2nd 2.082

3rd 1.342

4th 1

5th 0.822

 

MT75 (2.9 V6, 2.5 diesel AND 2.0 4x4)

 

1st 3.608

2nd 2.084

3rd 1.363

4th 1

5th 0.829

[Dom]

My brothers old black capri had a V6 MT75 fitted, it's a chunky old box, with 13" wheels and a 3.7 diff it would hit the rev limited in 5th at about 6.5K

[MARK FRST]

it was just an idea as type 9's are getting harder to come by and the mt75 is a cheap and fairly reliable box more thinging required on this i think lol

[fastferretzetecmk1]

Hi all, just a note, ive used mt75 with live axles, use a prop with a centre sliding joint, i used a swb transit prop, mt75 box live axle, job done

 

Very srong box too, i put 511bhp up one for 2 years, never missed a beat, just watch for faulty fifth gear hubs, the micro weld can crack and cause gear jamming