what gearbox?
what gearbox?
Author
Discussion

johns3

Original Poster:

93 posts

259 months

Tuesday 17th October 2006
quotequote all
Hi all,

How can I tell which gearbox I have? On the parts list it says Type N or MT75. I have a 1992 S3C. Anyone know which mine would be or are there any tell tale signs?

Thanks

Roy C

4,213 posts

313 months

Tuesday 17th October 2006
quotequote all
johns3 said:
How can I tell which gearbox I have? On the parts list it says Type N or MT75. I have a 1992 S3C. Anyone know which mine would be or are there any tell tale signs?

AFAIK TVR never got round to fitting an MT75 to a V6-engined S.
They were all fitted with the Ford Type 9 (aka Type N).

F908 Tim

740 posts

268 months

Tuesday 17th October 2006
quotequote all
I did think mine was the 75 box, certainly spiggot bearing and a couple of other bits from Ford were the perfect match and they were supplied for an 75 box. It says in the bible it was fitted to the S after the S1 I thought, but I do not have synchromesh on reverse...does the 75?

tvrgit

8,489 posts

281 months

Tuesday 17th October 2006
quotequote all
I very much doubt that any gearbox has synchromesh on reverese - reverse works in a totally different way from the forward gears...

B16 RFF

883 posts

296 months

Wednesday 18th October 2006
quotequote all
F908 Tim said:
I did think mine was the 75 box, certainly spiggot bearing and a couple of other bits from Ford were the perfect match and they were supplied for an 75 box. It says in the bible it was fitted to the S after the S1 I thought, but I do not have synchromesh on reverse...does the 75?


Its a type N. Early versions (first edition) of the bible are inaccurate on this point.
If reverse is left and forward (or is it left and back - its been a long time since I sold my S3, but definitely left anyway) it confirms Type N.

On the MT75, reverse is right and back.

Roy C

4,213 posts

313 months

Wednesday 18th October 2006
quotequote all
ID Parade:


Ford Type 9 (or N)



Ford MT75

www.fordscorpio.co.uk/mt75.htm

F908 Tim

740 posts

268 months

Wednesday 18th October 2006
quotequote all
Mines an N then, and I was just lucky with the parts and a first edition bible!

B16 RFF

883 posts

296 months

Thursday 19th October 2006
quotequote all
Roy C said:
ID Parade:


Ford Type 9 (or N)



Ford MT75

www.fordscorpio.co.uk/mt75.htm


Yes, the type N has a cast iron case, and the MT75 a heavily ribbed alloy casing.
The MT75 photo shown is for the 4WD application, with the transfer casing, BTW.

Not sure if the N is exactly the same as the 9, probably a close relative, or one was a development of the other.
Maybe type 9 is 4 speed, N the 5 speed version ????? Just speculating.

Edited by B16 RFF on Thursday 19th October 10:50

Roy C

4,213 posts

313 months

Thursday 19th October 2006
quotequote all
B16 RFF said:
The MT75 photo shown is for the 4WD application, with the transfer casing, BTW.
Yes, I couldn't get a decent pic of the box on it's own.

B16 RFF said:
Not sure if the N is exactly the same as the 9, probably a close relative, or one was a development of the other.
Maybe type 9 is 4 speed, N the 5 speed version ????? Just speculating.

I'm sure it's the same 'box. Probably just a Ford marketing ploy.