Help.........
Author
Discussion

Club.Ed.TONKA

Original Poster:

298 posts

251 months

Friday 22nd April 2005
quotequote all
Hi Guys

Its panic time here at Tonkaland , got my new clutch and about to remove my 4 speed howling gearbox for recon next week ready for Stoneleigh ,horror of horrors they cant do it for another week at least so that is me well and truly up the thingy without a wotsit.

So choices , bearing in mind mine is 1.7 and all Harrier based....

1) - been offered a 1300 box , will this do for now with my clutch?

2) think I can get mark 3 Cortina 1600 x-flow box , or is it longer?

3) go 5 speed but reluctant as with my cam there is about as much pulling power as a broken elastic band below 2000rpm

4) One club member has already offered a suitable 4 speed box but could do with something nearer to home (Doncaster)as I am not in a position to travel far from home at the moment.....

Thanks in advance

Mark

swizz...club sec

218 posts

251 months

Friday 22nd April 2005
quotequote all
Mark, the 1.3 box will probably do if you take it easy. The only issue will be the clutch - try the friction plate over the gearbox input shaft - if the splines match it'll fit. Also check prop against the output flange. I'd be surprised if nothing matches up.

Its likely that only the ratios are different in the box to suit the particular engine.

Swizz...

aquasigns

66 posts

268 months

Friday 22nd April 2005
quotequote all
My Geep has a 1600 x-flow with the original 4 spd 1300 box that I built it with. Admittedly I haven't used it all that much with this combination, but it showed no signs of giving up after the engine change.

I did put a new clutch plate in when I made the change..

Hope this helps!

Pete

IanA

472 posts

286 months

Friday 22nd April 2005
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Don't worry about using a 1300 gearbox on the back of a larger crossflow just as long as you don't try hammering it off the line, especially if you have big wheels.

I had one on the back of my 1600GT and used sensibly- no problem even with 30x10x15" tyres.
Cheers
Ian

techsec

633 posts

286 months

Saturday 23rd April 2005
quotequote all
On the whole the main difference is the gearing from 1st to 3rd. So if its a goodun it will work fine. As Ian says just dont try drag strip starts just in case.