Gearbox number

[Ken]

My car has a gearbox refurbished by the factory. The original number has been ground off leaving only the letter E visible below. Presumably it was an exchange unit.
The brass Rover Co plate on the bellhousing has numbers listed as Part number 600917 then after a gap 1.
Below that serial number K 09438.
Is there anything useful that can be determined by these .
The car is number 24133390D. Other than it being registered in 68 I know nothing more if anyone can add to that it would be helpful.

[Craig T]

I've only ever seen the later numbers for the gearboxes on the page below. I have a 607125RR so mine is a IIA gearbox, external clutch cylinder etc but has the fully synchro gearset inside.
My rebuild plate is a printed aluminium one, not brass.

I'm sure a similar list exists for the earlier gearboxes, hopefully someone has that.

Craig.

[autorover1]

LR Service Newsletter Vol 3 No 15 introduced Rebuilt Gearbox No. 600917 in Aug 1970 for 4 cylinder engines, replacing 3 other variants ie 591438, 533161 & 539850,  and is fitted with a plain spline rear output shaft 591429. K is the rebuild location, which I cannot remember!

[diffwhine]

I vaguely recall Hams Hall being a major unit manufacturing location. Maybe they did reconditioning there as well?

[Ken]

Hams Hall, I haven't heard of that in some time though what I know of it didn't include any Land Rover manufacturing. The power station used to cause some disturbance to cloud on a totally cloud covered day.
The test pilot Alex Henshaw ( his book 'Sigh for a Merlin' is a great read ) used to fly Lancaster's over it with unsuspecting passengers and bet them he could drop the aircraft through the cloud cover directly over Castle Brom airfield. The disturbance from Hams Hall gave him his location. He could also slow roll a Lancaster with a passenger standing behind him without them holding on or losing balance.
Thanks for the info so far, interesting that K gave the location. I guess it rebuilt as a standard ie, not all synchro box.

[Craig T]

I guess they couldn't rebuild to an all-synchro state before 1970ish as they were all part synchro before that so the parts simply didn't exist.

I'm assuming my gearbox was fitted sometime in the 1970's but unless anyone can date the serial numbers on the rebuild plate, I guess I'll never know. I drove around for years with this gearbox wondering what all the fuss was about double-de-clutching and no synchro, it's easy I thought. Wasn't until I saw that page and read it's an all synchro box, I twigged.... 

Craig.