G40 Cup Car Gearbox with L.S.D

Kustom · August 12, 2009, 06:22:51 PM

For sale an original cup car gearbox with Gemini Diff.

The box was rebuilt about 2-3k ago (unfortuantely i dont have a receipt for this). It has however just come back from a strip down an check by JP Race in Silverstone (which i do have a receipt for). They confirmed everything is fine inside and no rebuild was necessary, although one seal was replaced as it was damaged during removal. During the check I had a speedo take off gear installed/replaced as the race boxes didnt have or need these.

The price is £850

and would ideally be collection from Silverstone Northamptonshire

Cheers

Matt

Kustom · September 08, 2009, 10:46:49 PM

BUMP

type-r-dunk · September 10, 2009, 10:22:22 AM

Hi
Are the ratios the same on the cup box and what type of diff did they fit to them were they helical or plate?
If plate how harsh were they 0.5, 1, 1.5 or 2 way.
Dunx

hayesey · September 10, 2009, 11:03:44 AM

gearbox internals on cup car boxes are identical to g40 road car boxes. The gemini is a plate diff, preload and ramp angles could be set to anything, depends how the driver liked it setup. I never knew the specs of the gemini I had, it didn't seem any harsher than the gripper diff I have now, possibly a touch less so if anything.

Kustom · September 10, 2009, 10:47:59 PM

Thanks for the reply Hayesey. I dont know the exact spec either all I can say is it wasnt difficult to drive in normal traffic. It did the job in the corners though provided you dont lift off.
Cheers
Matt

Yoof · September 11, 2009, 12:10:40 AM

Preload prob circa 110lb- if that helps anyone.

Looks like a Phase 1 diff too

Kustom · September 18, 2009, 10:07:55 PM

Back up for sale as the Guy who said hed have it isnt responding to emails.

Kustom · October 28, 2009, 08:27:37 PM

BTTT

Kustom · May 16, 2010, 10:23:06 PM

This is still for sale, offers via pm please