Wide, intermediate and close ratio types of gear sets were produced by Lagonda to suit different car models. For the Z gearbox these gear sets are referred to as ZC, ZD and ZE respectively. The individual gear ratios for a specific type of box are the same for both OH and Z gearboxes.
The gear sets produced by the Club are the close ratio type. If you have a wide or intermediate type of gearbox, all is not lost as an individual close ratio gear pair (main and layshaft) can be installed in a wide or intermediate box, with, of course, a resulting change in the box ratio.
An alternative third gear set is also available for both OH and Z gearboxes. This provides a lower third gear ratio, to bridge more evenly the gap between second and top.
Further details of these gearboxes can be found in the "Workshop Manual for 2 Litre Lagonda Gearboxes" available from the Club.
A complete set of 8 Z gears with original gear ratios.
A complete set of 8 gears and 2 shafts, with original gear ratios.
A complete set of 8 gears with oringal gear ratios except for 3rd, which is lower (29 teeth instead of 30 teeth) to 'bridge the gap'.
A complete set of 8 gears & 2 shafts with original ratios except for 3rd, which is lower (29 teeth instead of 30 teeth) to 'bridge the gap'.
Fits on input shaft. These are old stock and is a never to be repeated item.
This is a three layer version - check if you have enough room to accommodate it.
Composite drive coupling 3 layer.
Fits into brass cup that goes under the gearbox chassis rails, under the front engine mounting chassis bracket, between radiator and mounting bracket.
For OH & Z boxes. 3 required per box.
Glue or screw into sump plugs of gearbox. 20mm OD