Fitting Mk4 Gearbox on Mk1 Golf?

Anyone out there ever fitted a Mk4 6 speed box to a Mk1 Golf? I have a Mk4 Golf gearbox sitting on my floor that I would like to mount onto my Mk1 Golf, I do have the Mk4 cable change but not sure what else would be required?

Are the physical mounting points the same for both gearboxes?

Thanks, appr whatever suggestions you guys have?

Richard

Not a chance. the input/output shafts will be different, the mountings will need to be relocated and strengthened.

Also, the 6 speed golfs had at least 110bhp, and about the same torque - chances are a mk1 will never pull a 6-speed as well, if at all.

The only aftermarket gearboxes I've seen fitted to a mk1 is the 5-speed from a polo 1.4, but if your car has a 5 speed already, there's no point.

Mine has a O2J 5 speed Mk4 Golf GTI box fitted.
I used the mounts from Just Caddys
http://www.justcaddys.com/fabricated-products.html

You need the 100mm cups for the box and the 100mm shafts and cv's with the compatible hubs.

I also converted to an hydraulic clutch by using a pedal box from the guy on the edition 38 forum. Some mount a clutch master cylinder directly through the bulkhead and make a bracket to attach it to the pedal. Others use the cable conversion kits that were standard on some Seat's of the same era.

For the cable shift I cut a larger hole in the floor and mounted it under the car so that it looks standard from the inside. The cables were then routed under the tunnel into the engine bay. I used Lupo GTI cables as they are just the right length - rare but can still be had new from VW. Some guys mount on top of the tunnel and cut holes in the bulkhead.

I have also added a quick shift kit from Diesel Geeks.

lhasadreams said

Mine has a O2J 5 speed Mk4 Golf GTI box fitted.
I used the mounts from Just Caddys
http://www.justcaddys.com/fabricated-products.html

You need the 100mm cups for the box and the 100mm shafts and cv's with the compatible hubs.

I also converted to an hydraulic clutch by using a pedal box from the guy on the edition 38 forum. Some mount a clutch master cylinder directly through the bulkhead and make a bracket to attach it to the pedal. Others use the cable conversion kits that were standard on some Seat's of the same era.

For the cable shift I cut a larger hole in the floor and mounted it under the car so that it looks standard from the inside. The cables were then routed under the tunnel into the engine bay. I used Lupo GTI cables as they are just the right length - rare but can still be had new from VW. Some guys mount on top of the tunnel and cut holes in the bulkhead.

I have also added a quick shift kit from Diesel Geeks.

which is fine for the 02A/02J boxes.

but if his 6spd box is 02M, then none of the above will work.
all custom stuff that you will need to find someone to make up for you, none of it will be cheap.

JonP said

but if his 6spd box is 02M, then none of the above will work.
all custom stuff that you will need to find someone to make up for you, none of it will be cheap.

That's what I was headed for - my six speed box is 02M on my Bora.

It's not impossible, but I think the effort outweighs the benefits :dontknow:

Ah misread the 6 - it's really not worth the hassle !!!

Thanks all for the prompt and helpful responses!!! Glad to have "met" you all!

I was not overly set on the 6 speed, but the cable shift for me is highly desirable as it gives a much more slick action. I have replaced all of the bushes and rod ends, selector ball etc but still the stick is sloppy and change is notchy!

I'll see if I can hold of a Polo 1.4 box and shift mechanism instead!


Thanks and have a great Christmas all!
Richard

I made my own linkage using steel ball studs with adjustable rods,mine is great with no free play at all

if you can get an 02S type box from mk5 golf, its basically same externally as 02a/j. couple issues with it still though, there is no speedo drive for one thing. you might be able to switch the mid bell housing from 02a/j not 100% on that one though.

6speed02s.zip - Google Drive