Thread: Series gearbox question

I've got a SIII gearbox (suffix C) that's abit noisy in 1-2-3and quiet in 4. Probably Lay shaft bearing worn.
I've got a SIIA gearbox & T/Case already to bolt in.
The SIII box came off a project that had a LR V8 mated to a series gearbox (I don't understand why). As a result the primary pinion has been machined down to suit the V8. I've overcome this by fitting a bronze bush (or similar - the type that you soak in oil o/night and they become bearing-like).
I would like to retain the simplicity of the SIII clutch mechanism. [size=24]<span style="color:red">Can I use the 2A box and fit the SIII clutch mechanism without changing to a SIII primary pinion?</span>
The SIII box jumps out of 2nd on over-ride (engine braking) so I figure it's better to have all gears with no synchro in the lower ones, than have synchro and jump out of gear. I'm also told the SII/A boxes were stronger than the SIII.

The motor's been done up and there's an overdrive, so this Landy will get to 120kph (on the flat on a cold morning) so the stronger gearbox seems a better choice than repairing the SIII box. Also allows a quicker change over (hopefully same day)

[img]style_emoticons/<#EMO_DIR#>/sad.gif[/img] [img]style_emoticons/<#EMO_DIR#>/sad.gif[/img] [img]style_emoticons/<#EMO_DIR#>/sad.gif[/img] :roll:
I asked around, most people thought it could be done,

but the layshaft on the 2A has a nut at the front, the SIII has a bolt. The nut will not allow the front housing (the one inside the bell housing where the thrust bearing mounts) to mate up.

There goes a days work.

Now to decide whether to repair the SIII box or fit the SIIA with the older clutch.

Either way, I'll need to feed it some money. :x :x :x

Learn from my mistakes, it's cheaper than making your own.