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Consort gearbox in a Special Sports

grahamemmett
Posts: 473
Joined: Mon Feb 08, 2016 8:12 pm
Location: Northwich, Cheshire

Consort gearbox in a Special Sports

Post by grahamemmett » Wed Jan 16, 2019 10:10 pm

Has anybody any experience of fitting a Consort gearbox in place of the Special Sports gearbox?
Current SS gearbox has broken 1st and considering this as a solution.
I know the ratios will be different (although I think it will climb hills better) but will it just slot in? I can’t see the casing being any different in size nor fitting. The quadrant has different markings but it’s still 4 positions.

Any comments welcome.
Graham Emmett
Northwich, Cheshire
DB18 1949 LCV522 (Yes that one with the P100s)
https://www.db18.org

Crossley Stephenson
Posts: 215
Joined: Wed Feb 10, 2016 9:15 pm
Location: Victoria, Australia

Re: Consort gearbox in a Special Sports

Post by Crossley Stephenson » Thu Jan 17, 2019 7:11 am

G'day Graham from a very warm and humid Melbourne!

There is at least one SS here in Oz that has a Consort gb. As far as I can tell they should be pretty much a straight swap. As you say the ratios will be different but this could be resolved by replacing the worm drive diff for the Consort hypoid diff. The SS really has two useable gears 2nd and OD, the others appear to me just a means of getting into these two gears😁

Cheers
Michael

Db n j
Posts: 196
Joined: Sun Mar 13, 2016 8:55 am

Re: Consort gearbox in a Special Sports

Post by Db n j » Thu Jan 17, 2019 8:01 am

I have both gearboxes sitting in our garage, so can measure as required.

As Michael says, the gearing is different, so whether to change axel depends on whether it's a short-term or "for ever" swap.

grahamemmett
Posts: 473
Joined: Mon Feb 08, 2016 8:12 pm
Location: Northwich, Cheshire

Re: Consort gearbox in a Special Sports

Post by grahamemmett » Thu Jan 17, 2019 5:04 pm

Thanks team!
My own DB18 has a Consort back axle and the ratios are perfect for today's driving.
David, I'd be grateful for a rudimentary tape measure check although I can't imagine them being different (Just had a thought - I can look in the Parts Book and see if they hav ethe same part number)
Graham Emmett
Northwich, Cheshire
DB18 1949 LCV522 (Yes that one with the P100s)
https://www.db18.org

grahamemmett
Posts: 473
Joined: Mon Feb 08, 2016 8:12 pm
Location: Northwich, Cheshire

Re: Consort gearbox in a Special Sports

Post by grahamemmett » Thu Jan 17, 2019 5:06 pm

Just checked on www.db18.org and they are the same part number so I'm confident it will go in
Graham Emmett
Northwich, Cheshire
DB18 1949 LCV522 (Yes that one with the P100s)
https://www.db18.org

qantasqf1
Posts: 103
Joined: Mon Mar 07, 2016 10:13 pm

Re: Consort gearbox in a Special Sports

Post by qantasqf1 » Thu Jan 17, 2019 7:17 pm

The Consort box will fit straight in. The speedo drive gear ratio is different because of the different rear axle ratio so your speedo will show the wrong speed; however, if you fit the SS speedo drive gear to your Consort box that’ll rectify that. Incidentally, the box can be removed without disturbing the engine in case you didn’t know.
Steve

grahamemmett
Posts: 473
Joined: Mon Feb 08, 2016 8:12 pm
Location: Northwich, Cheshire

Re: Consort gearbox in a Special Sports

Post by grahamemmett » Thu Jan 17, 2019 9:31 pm

Good thinking Steve.
Graham Emmett
Northwich, Cheshire
DB18 1949 LCV522 (Yes that one with the P100s)
https://www.db18.org

Peter Grant
Posts: 167
Joined: Thu Mar 10, 2016 10:02 pm
Location: Sydney, Australia

Re: Consort gearbox in a Special Sports

Post by Peter Grant » Thu Jan 17, 2019 11:19 pm

Steve,

Why don't you recount your experience with a DB 18 saloon with a Special Sports Gearbox fitted?

I am sure the forum members would appreciate the story.

Cheers
Peter Grant

grahamemmett
Posts: 473
Joined: Mon Feb 08, 2016 8:12 pm
Location: Northwich, Cheshire

Re: Consort gearbox in a Special Sports

Post by grahamemmett » Thu Jan 17, 2019 11:36 pm

Sounds like a story for the Driving Member too.
Must have been a bloody nightmare.
They are the worst ratios ever chosen for a gearbox.
Graham Emmett
Northwich, Cheshire
DB18 1949 LCV522 (Yes that one with the P100s)
https://www.db18.org

qantasqf1
Posts: 103
Joined: Mon Mar 07, 2016 10:13 pm

Re: Consort gearbox in a Special Sports

Post by qantasqf1 » Fri Jan 18, 2019 1:47 am

I posted a brief article on this issue as suggested by Peter Grant. Although it wasn’t quite a nightmare to drive it was annoying to say the least. Of course the upside was that when in overdrive in conjunction with the higher ratio rear axle it simply hummed along on the straight and level!
Steve

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