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Still looking for a gearbox.
stevetzoid - 10/6/09 at 02:50 PM

Hi all,
I am still looking for a 4 speed gearbox with 23 splines input/output I beleive it's the "rocket Box" can anyone help!!. needs to be 23 splines for the stronger box and not the 5 speed.

Regards Steve Evans.

blakep82 - 10/6/09 at 02:55 PM

be quick!

the rocket box's proper name is the type E

the 5 speed type 9 has the same 23 spline shaft (just coz you said it needs to be 23 splines for the stronger box)
they're the same physical size.

i think the rocket is a little stronger though
how much power are you wanting to put through it?

[Edited on 10/6/09 by blakep82]

luke - 10/6/09 at 03:51 PM

Blake, if you look at your link the questions at the bottom someone asks how many splines on the input shaft and he says 20.

blakep82 - 10/6/09 at 03:54 PM

oooooh, right... ignore me!

flak monkey - 10/6/09 at 03:55 PM

The type 9 is a 23x1" input shaft, identical to the type e box.

Unless for some reason you specifically need the 4 speed i would just stick a type 9 in.

Cheers,
David

blakep82 - 10/6/09 at 04:04 PM

^ yep, 5th would be nicer on motorways anyway

david, wasn't the type e a bit stronger though? or was the 5th gear the only difference?

nib1980 - 10/6/09 at 04:36 PM

i have a type 2 if anyone is interested? I know this man isn't but someone may be?

goodguydrew - 10/6/09 at 07:02 PM

I have a spare 4 speed. It's like a 4 speed type 9. I'll count the splines tonight.

flak monkey - 10/6/09 at 07:09 PM

quote:
Originally posted by blakep82
^ yep, 5th would be nicer on motorways anyway

david, wasn't the type e a bit stronger though? or was the 5th gear the only difference?


I think the boxes are physically the same. The weakest point in the type 9 is the laycluster needle roller bearings. In a HD box these are replaced with a proper roller bearing. As far as I know the laycluster design is identical between the 2 boxes.

David

goodguydrew - 10/6/09 at 10:35 PM

My 4 spped seems to have 22 input splines and 25 output. Any use?