Gearbox Conversion

[Guest joehale]

Hi guys,

 

Dropped the engine and gearbox out today and am hoping to convert my 4 speed box to 5 speed.

 

I see the chasis i have is designed to take both, however if i get the 5 speed i will need s shorter propshaft.... where do i get one?

 

I also have the problem of 20 tooth spline into clutch and also 20 tooth on the propshaft end.

 

Does anyone know if thats standard 4 speed? and if so what would the 5 speed be?

 

Where could i get a new propshaft with the correct number of splines ??

 

Cheers.

[Redspec]

If you fill in your location in your profile people may be able to recommend a supplier near you

[Snapperpaul]

Your 4 speed is a type E, 20 splines 7/8"

Type 9 is 23 spline 1"

 

Props try Dunnings and Fairbanks or Recoprop, usually adverts in the Kit car mags.

Edited March 15, 2011 by Snapperpaul

[Andy Spencer]

Is it a 1.6 or 2.0? If its standard 1.6 and definitely 20 spline you might have to fit a 2.0 flywheel and clutch for the 5 speed type 9 box. If its a 2.0 mated to a 20 spline it will either have an older 1.6 flywheel & clutch or a special clutch plate that was available but scarce for the 2.0 engine but 20 spline 7/8".

The 2ltr clutch is bigger diameter, and was also fitted to later 1.6's and 5 speed type 9's.

I used the unusual clutch plate (sourced it from Big Jim) on my old S7 when upgrading to 2.0 but keeping 4 speed box and had to find my way through all that but got there in the end. Props are easy to get and advice above is good.

 

I always liked the 4 speed box, nice ratios and gearchange but I guess if you do some longer runs its worth upgrading while everything is out.

 

Good luck.

[chris n]

Sound like you may have a type 3 4 speed box 7/8” x 20 spline input shaft

 

type 3

 

Most later Cortina/Sierra has a type E box with a 1" x 23 spline input shaft.

 

type E

 

The type 9 also has a 1" x 23 spline input shaft

 

type 9

 

This may also be of some help to you as well

 

[Guest joehale]

Thanks for the info guys.

 

The car it came from was an 'A' plate. With the 2.0L pinto fitted. I have counted the splines on my box to be 20 clutch and 20 prop. Not taken the shaft diameter yet tho.

 

All this gearbox stuff is a minefield!!! Never realised it was this hard. Oh well the one i have is dead and it HAS to be replaced.

 

Looking at one on Ebay at the mo, so fingers crossed he answers my questions and its the right one!!

 

Cheers

[Guest joehale]

OK This is a joke.

 

No where i look is there a 20 spline box to be found. So im fed up of waiting.

 

Where will i get a 23 spline clutch to fit my 2.0l Pinto? And thanks in advance for the advice on Props!

 

Joe

[Guest gdc]

i have a fully rebuilt 4 speed here done 400 miles since rebuild ,

bill for 400 quid for rebuild .

 

graham

[Guest joehale]

I have one i could get rebuilt but no way am i paying £400 to get it done. I might as well buy a clutch kit with 23 spline for £65 and a old type 9 for a few quid with prop.

 

I like the idea of a 5 speed but thought sticking with a 4 speed would have been easier.

 

So.... Anyone with a type 9 5 speed box, let me know!!!