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4 speed to 5 speed, Type 2,3,4 and 9 boxes....
alistairolsen - 20/4/10 at 03:11 PM

If one had a car with a type 2 or 3 four speed gearbox, and one removed it and fitted a type 9, would the existing prop shaft, gear selector hole and engine mounts be suitable?

I know there is a bulge in the alloy end casing for 5th gear, but beyond that is the external architecture the same?

Cheers

lewis - 20/4/10 at 03:46 PM

Dose burton's website give dimentions on all tha boxes?they have pics on there so might help abit?

prawnabie - 20/4/10 at 03:53 PM

The type 9 is much bigger in length and width so the propshaft will need shortening and the splined end changing.

The bellhousing is also larger where the fork exits - the fork all exits at a different angle.

The mounting will need to be repositioned much further back as will the hole for the selector.

[Edited on 20/4/10 by prawnabie]

snapper - 20/4/10 at 06:01 PM

Type 2&3boxes also had 7/8th x 20 spline input shafts the Type 9 has 1" x 23

stevebubs - 20/4/10 at 08:18 PM

The consensus is "no"

alistairolsen - 20/4/10 at 09:27 PM

Hmm, so any 4 speed car that Id like to upgrade to 5 speed is going to need extensive work....

MikeRJ - 21/4/10 at 11:58 AM

quote:
Originally posted by alistairolsen
Hmm, so any 4 speed car that Id like to upgrade to 5 speed is going to need extensive work....


No...if the 4 speed is the "Type E" (as described on Burtons web page), then the only change required for a Type 9 is moving the gearbox mounting and possibly the gear lever hole in your tunnel. The overall length is the same so the prop will fit.

However, not all people would consider a standard Type 9 an "upgrade" in this case! The 4 speeder has pretty decent ratios but the Type 9 has an almost unusable first gear in a light car.

[Edited on 21/4/10 by MikeRJ]