jacko
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 posted on 19/8/07 at 08:13 PM |
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MT75 or type 9
Hi i have a type9 fitted at the moment but dont like the first gear + its a heavy box how dose this box compere to a mt75 box ? i have a mt57 box so
i would not have to buy one Thanks
Graham
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indykid
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| posted on 19/8/07 at 08:32 PM |
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i may be wrong, but i thought the mt75 was too wide for a standard indy tunnel.
if that's the case, i imagine it'll make your mind up
tom
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big_wasa
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| posted on 19/8/07 at 08:32 PM |
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Not a lot in the weight.
Two advantages of the Mt75
1) will take much more torque than the 9
2) very easy to move the garchange.
Against
its bigger (hence not a lot in the weight)
1st gear is meant to be shorter than the 9 (I think  )
Im sure there is more 
If your using it on the Pinto I would stick with the 9.
imho
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MikeRJ
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| posted on 19/8/07 at 08:36 PM |
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As well as the extra width, you'll need to factor in the cost of a new propshaft as well, the output on the MT75 is different.
The MT75 is definately lighter than the Type 9 using the standard iron bellhousing. However, if you replaced the bellhousing with an alloy one (e.g.
RS2000) the weight difference would be small IMO.
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zetec
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| posted on 19/8/07 at 09:08 PM |
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I've got a MT75 in my Indy...Was used by Westfield for years, might still be. Only problem is you cant get the gear ratios change if thats what
you want, easy with the type 9 (£500ish).
Good news it is as tough as old boots and the gear change is a doddle to relocate to a better position.
 
Rescued attachment gearboxsmall.jpg
" I only registered to look at the pictures, now I'm stuck with this username for the rest of my life!"
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rusty nuts
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| posted on 19/8/07 at 09:09 PM |
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How about a gear kit from BGH Geartech?
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meany
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| posted on 19/8/07 at 09:10 PM |
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i have had 2 sierras in the past.
one with a type 9
and the other with a MT75.
i have changed clutches on both, on my back underneath....gearbox on the chest , trust me, the MT75 is a lot lighter.
the Mt75 is shorter, but fatter.
i have a pic of the MT75 dimensions here...somewhere...lol
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zetec
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| posted on 19/8/07 at 09:16 PM |
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I might be wrong but the design means you would have to change the whole gearset rather than just one or two.
" I only registered to look at the pictures, now I'm stuck with this username for the rest of my life!"
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Stu16v
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| posted on 19/8/07 at 09:31 PM |
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If you are contemplating changing the box to MT75 *just* to get a ueful first gear, then dont - the MT75 is crap too!
Many Westfield owners change from MT75 to type 9 to get a 'decent' first gear (in conjunction with a close ratio gear kit)...
[Edited on 19/8/07 by Stu16v]
Dont just build it.....make it!
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mcerd1
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| posted on 20/8/07 at 07:41 AM |
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quote:
Originally posted by rusty nuts
How about a gear kit from BGH Geartech?
http://www.bghgeartech.co.uk/html/gear_kits.html
I'm looking at one of these just now - anyone got one ??
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MikeRJ
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| posted on 20/8/07 at 08:11 AM |
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quote:
Originally posted by zetec
I might be wrong but the design means you would have to change the whole gearset rather than just one or two.
The layshaft is one piece, but you can machine individual gears off and spline the shaft to fit a new one on, which is what BGH does.
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procomp
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| posted on 20/8/07 at 09:11 AM |
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Hi what you really need is.
A bgh heavy duty type 9 box with: 2.8 1st - 1.81 2nd - 1.26 3rd -1.1 4th - 0.87 5th. Heical gears not straight cut.
With a quick shift leaver fitted all as in new condition low miles for £400 Just needs bellhousing.
U2U me if interested.Also in the FS section.
cheers matt
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Vindi_andy
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| posted on 23/8/07 at 09:05 AM |
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quote:
Originally posted by zetec
I've got a MT75 in my Indy...Was used by Westfield for years, might still be. Only problem is you cant get the gear ratios change if thats what
you want, easy with the type 9 (£500ish).
Good news it is as tough as old boots and the gear change is a doddle to relocate to a better position.
Am I wrong or does this gearbox in the original post appear to be upsidedown
I thought the gearchange muont was on the top or is this something special
Forgive me for being thick but Im using a DOHC with an MT75 and im sure the gearchange cradle fits on top
[Edited on 23/8/07 by Vindi_andy]
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jacko
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| posted on 23/8/07 at 06:01 PM |
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quote:
Originally posted by Vindi_andy
quote:
Originally posted by zetec
I've got a MT75 in my Indy...Was used by Westfield for years, might still be. Only problem is you cant get the gear ratios change if thats what
you want, easy with the type 9 (£500ish).
Good news it is as tough as old boots and the gear change is a doddle to relocate to a better position.
Am I wrong or does this gearbox in the original post appear to be upsidedown
I thought the gearchange muont was on the top or is this something special
Forgive me for being thick but Im using a DOHC with an MT75 and im sure the gearchange cradle fits on top
[Edited on 23/8/07 by Vindi_andy]
Hi the gearbox is the right way up .
Is yours wrong then?
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zetec
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| posted on 24/8/07 at 09:59 PM |
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Have you got your screen the wrong way up?
" I only registered to look at the pictures, now I'm stuck with this username for the rest of my life!"
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MikeRJ
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| posted on 24/8/07 at 11:07 PM |
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I'm probably wrong, but I think there may have been a special MT75 for Transits with the gearchange coming out of the top.
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