360 and 340 gearbox compatibility

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Butterz
Posts: 11
Joined: 19 Sep 2011 04:53 pm
Location: Bristol

360 and 340 gearbox compatibility

Post by Butterz » 09 Nov 2011 09:30 pm

Hi chaps, I've got a 360 at the moment, put a welded diff in it yesterday and seem to have lunched my gearbox :( . It still drives but theres lots of grinding and scraping and it's difficult to select gears. Fourth is fine though oddly. I'm going to flush the diff and box out tomorrow and see what comes out. I've found a 340 box and diff already down in Dorset but I've no idea if these are compatible. My gearbox was on it's way out before I put the welder in it but I wanted to spend some time getting a decent one sorted. My hand, however, has been forced.

Any help is much appreciated!

Dave.
'77 Chevette
'85 360 GLS
'97 460 CD *sold*

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Speedy88
Posts: 4057
Joined: 04 May 2009 11:52 pm
Location: Bristol

Re: 360 and 340 gearbox compatibility

Post by Speedy88 » 09 Nov 2011 10:18 pm

Nope, the diffs can be used but the gearboxes have different inputs on the 340 and 360.

Were you being spirited when it let go?
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

Ride_on
Posts: 2265
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: 360 and 340 gearbox compatibility

Post by Ride_on » 10 Nov 2011 12:54 am

I believe the gearboxes are mostly the same, provided they have the same number of gears. The front input section can be swapped over, but I have not done this myself, others have posted about it.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

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