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Thinking about converting to sierra gearbox for 1098 minor

Posted: Thu Oct 01, 2009 11:49 am
by ssnjimb
Hi

Iam thinking about converting my minor to the 4 or 5 speed Sierra gearbox.

There are some earlier type 3 4 speed gearbox's about that are cheap do they have any benefits over the 5 speed type 9

What type of work is required to convert.

what parts are needed. Should i buy a kit and then source the gearbox seperately.

Jamie

Posted: Thu Oct 01, 2009 12:03 pm
by charlie_morris_minor
i think this question is covered in..

http://www.morrisminoroc.co.uk/index.ph ... ic&t=27685

Posted: Thu Oct 01, 2009 3:43 pm
by bmcecosse
Can't see the point of spending all that money - and all the hassle. Just stick a 3.7 diff in the axle - works well.

Posted: Fri Oct 02, 2009 1:19 pm
by rayofleamington
Can't see the point of spending all that money - and all the hassle.
If you've got the time and money, it's worth it.
A 3.7 with standard 1098 id fine except on hills where the gap between gears is too big.

Posted: Fri Oct 02, 2009 3:29 pm
by bmcecosse
Plenty hills in Scotland - it works fine on my car, although the engine has been 'improved' somewhat.

Posted: Fri Oct 02, 2009 3:31 pm
by Blaketon
rayofleamington wrote:
Can't see the point of spending all that money - and all the hassle.
If you've got the time and money, it's worth it.
A 3.7 with standard 1098 is fine except on hills where the gap between gears is too big.
I'd go along with that. The Ford box is a little bit porridge like, compared with an MGB gearbox or the Spitfire overdrive box in my Midget (That's a great box and if I had the time, I'd like to fit one to the Minor). However, the Ford conversion is available, it takes into account the Minor steering rack and it works. The standard Ford box has a tree pulling bottom gear, with quite a gap to second.

Posted: Fri Oct 02, 2009 3:36 pm
by bmcecosse
I would agree - if it didn't cost the thick-end of £1000 to do the conversion!

Posted: Fri Oct 02, 2009 5:19 pm
by ssnjimb
I will start saving my money up for the conversion kit first. Jamie

Posted: Fri Oct 02, 2009 6:01 pm
by charlie_morris_minor
The 5 speed kit does not cost 1000 if you buy a second hand box it comes in at less than 500 and that is using brand new conversion parts.

Posted: Fri Oct 02, 2009 6:05 pm
by ssnjimb
kool thats not bad.

:) thanks charlie

Jamie :)