I run a Type 9 gearbox at the moment with an hydraulic concentric clutch slave. the box is on its last legs and I was wondering if I can convert to an MT75 inline box.

Questions;

1. Can I use/modify my hydraulic concentric clutch slave instead of going over to a cable clutch?

2. I read somewhere that the MT75 is 'bigger' than the Type 9, does anyone know how the dimension differ from the Type 9? I'd hate to buy one only to find it won't fit in the transmission tunnel.

Has anyone done this, or have any ideas?

Thanks in advance

The mt75 is bigger by how much I don't know. The mt75 has the clutch fork on the drivers side and sticks out the side of the box you will need a wilwood slave cylinder and make a bracket to bolt it to the side of the engine.

I want to fit one of the concentric clutches that go like a donut around the input shaft. That's what I have on my Type 9 gearbox at the moment.

I don't think there is anywhere to bolt your slave cylinder to inside the box the only way I could find on the net was the way I said sorry for the bearer of bad news

That's OK better to find out now, before I lay out any money. Could be cheaper just to have the Type 9 rebuilt then.

This is the part that you will need for the mt 75
http://www.rallydesign.co.uk/product_info.php?products_id=4080
The mt 75 is a stronger box it's the 1st gear that let's it down

Thanks for the posting, I have been researching elsewhere and turned up that the 4 cylinder Ford Scorpio (wide mouth frog version) from 1996 used a 2WD MT75 gearbox with an hydraulic clutch. Not sure yet whether it was the piston or concentric type yet, I'll post the answer here when I find out.

Here's some dims for you


Mt75 dims

If you get an Mt75 from the last of the ultima's they allready have hydraulic clutch. Easy to spot. They have a lot less webbing on the bell housing.

You will need a different prop shaft too

Thanks for details of Ultima - I am now on the track of a good unit.

Gear Box Ford Scorpio 16v 2.3ltr | eBay

Already on the case - thanks.

Gearbox conversions cost money, sometimes lots, been there, done that. The type 9 is a good gearbox when rebuilt by someone who is aware of their idiosyncrasies and better ratios are available should you want to change first to a more usable ratio, the kit cost me £200. IMHO you would be better off spending your money rebuilding the type 9, done properly you will then have a box that will last you another 100,000 miles. Who can say what condition the MT75 you buy will be in, a rebuild plus the fitting parts will cost loads.

Yes that's the real debate isn't it. I run the V6 version and you are right the 4 cylinder fist gear is too low, the V6 is much better.

The MT75 ratios are truly horrid compared to the type 9 especially the V6. I use the V6 box with the £200 kit to give it a better 1st gear, my ratios are 2.76:1 1.81:1 1.26:1 1.0:1 and 0.82:1, just right for road use and not bad on the trackday I did either. One of the better mods I have done to the car and since I was having the box rebuilt the only additional cost was the gear kit.

R1_pete

I thought that I would return the favour, pic of Type 9 dimensions

I found this data on MT75 gear ratios on a Granada/Scorpio website and linked it with some Type 9 ratio data.

Transmission Ratios



Here's a great article from a 2003 Retro Cars magazine all about Type 9s.

Type 9 Article

[Edited on 25/3/12 by carboy0]

[Edited on 25/3/12 by carboy0]

Question for Paul Turner where did you get your £200 gearset from, sounds like a plan.

Whilst looking at gearboxes, I found this with dims for the BW T5 gearbox to add to the collection




Borg-Warner T5 Dimensions

A = 19.5 inches
B = 7.2 inches
C = 14.5 inches
D = 24.7 inches
Weight = 75 pounds / 34 Kg



[Edited on 4/4/12 by carboy0]

quote:

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Originally posted by carboy0
Question for Paul Turner where did you get your £200 gearset from, sounds like a plan.

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Thanks Paul - brilliant package - another problem solved!