robin collis
Active Member
I have an early 3500S, 1971, and while (touch wood) the gearbox is OK it is not perfect and has been rebuilt once. One of my dreams is to convert the car to a 5 speed 'box.
Could the Forum comment on the options that I have to do this
I see my options as:-
1. Stick to the original 4 speed box and rebuild if it fails again. Easiest option so long a parts are available to rebuild the 'box How many times can I do this?
2. Convert to 5 speed 'box using SD1 'box and parts. Could be the easiest conversion to do as parts available, but SD1 boxes are getting hard to find in good condition.
3. Convert with another Rover 5 speed box. I believe that such 'boxes are available from land-rover and Leyland Daf vans, but I am not familiar with the different types of 'box available and I do not want to end up with ratios o suit a land rover or Van. Could someone with the knowledge give information a to which of these 'boxes might be suitable and possible to find.
4 Convert to another make of speed 'box I think that I have heard that Toyota 5 speed saloon car 'boxes can be used and that someone makes bell-housing to fit these to the Rover V8 Has anyone on the Forum done this conversion, or know who has done it? Any advice as to what type of Toyota 'box is suitable? oul a Celica 'box take the torque and power of a V8?
What other makes of gearbox could be used, or more important, have been used?
I do not have workshop facilities so would have to get the conversion done by a specialist, and I really want to use a tried and tested conversion and not be a pioneer with the conversion.
I cannot believe that I am the only P6 owner ho is thinking of gearbox conversion, so it would be great to get all the information in one place so that we can make plans,
Thanks in advance.
Could the Forum comment on the options that I have to do this
I see my options as:-
1. Stick to the original 4 speed box and rebuild if it fails again. Easiest option so long a parts are available to rebuild the 'box How many times can I do this?
2. Convert to 5 speed 'box using SD1 'box and parts. Could be the easiest conversion to do as parts available, but SD1 boxes are getting hard to find in good condition.
3. Convert with another Rover 5 speed box. I believe that such 'boxes are available from land-rover and Leyland Daf vans, but I am not familiar with the different types of 'box available and I do not want to end up with ratios o suit a land rover or Van. Could someone with the knowledge give information a to which of these 'boxes might be suitable and possible to find.
4 Convert to another make of speed 'box I think that I have heard that Toyota 5 speed saloon car 'boxes can be used and that someone makes bell-housing to fit these to the Rover V8 Has anyone on the Forum done this conversion, or know who has done it? Any advice as to what type of Toyota 'box is suitable? oul a Celica 'box take the torque and power of a V8?
What other makes of gearbox could be used, or more important, have been used?
I do not have workshop facilities so would have to get the conversion done by a specialist, and I really want to use a tried and tested conversion and not be a pioneer with the conversion.
I cannot believe that I am the only P6 owner ho is thinking of gearbox conversion, so it would be great to get all the information in one place so that we can make plans,
Thanks in advance.