Thread: Disco T-Case into 110 - what to do with speedo connection?

Hi Ben, just lever it out and fit the 1.003:1 gear and carrier.
It'll be fine AFAIK. I have changed them over in mine a few times.
JC

Originally Posted by justinc

Hi Ben, just lever it out and fit the 1.003:1 gear and carrier.
It'll be fine AFAIK. I have changed them over in mine a few times.
JC

Thanks - So the whole part is just a press-fit?

i'd be keen to know the result on road after you have it all done?
im doing a similar conversion in my disco, but swapping from 1.003:1 - 1.410:1

its an absolute dog to drive at the moment

Hi as you have found out there are two cable sizes, the drive gear housing does pull/lever out BUT it can be a pig to move, soak with a good penetrant oil before attempting and wear safety glasses, the thin edge flies/breaks off and can end up where you don't need it. The number of teeth on the plastic gear relate to the tyre size only not the ratio in the T box. If your replacement gear has a different tooth count it will not be accurate with existing tyres.
Regards Ian Ashcroft

Re isuzurover's above swap, worth noting something that can be done with an LT230 1.003:1 high to obtain a high range of 1.27:1 and low of 4.21: 1. Seems practicable alternative to disco box with 30% reduction Maxidrive low. I have all the bits. Just have to find time to assemble it and instal in my 300Tdi Defender 130.

I figured a new 22 tooth input gear that drives the 44 tooth high range gear on the 1.003 LT230 intermediate cluster was feasible and had one cut by www.cottamengineering.com.au. This is instead of the standard 26 tooth input gear that drives the 41 tooth middle gear on the cluster.

I wonder if Ashcroft Transmissions had similar 22 tooth input gears made if there would be a small market for them with additional possible use for LT230's out of old dead Range Rovers. Maybe Dave or Ian could comment on this.

Originally Posted by Ian Ashcroft

Hi as you have found out there are two cable sizes, the drive gear housing does pull/lever out BUT it can be a pig to move, soak with a good penetrant oil before attempting and wear safety glasses, the thin edge flies/breaks off and can end up where you don't need it. The number of teeth on the plastic gear relate to the tyre size only not the ratio in the T box. If your replacement gear has a different tooth count it will not be accurate with existing tyres.
Regards Ian Ashcroft

Both came out quite easily. Probably because the new t-case was new and clean and the old was very oily