Thread: Overdrive on a highspeed case.

G'Day Ben, and welcome!

What do you mean by signallers car? Do you mean a military Fitted For Radio truck?

I don't know the answer to your question, but someone else will. Pics of your trucks would be great too!

I don't believe that there is any reason that you can't fit both, btu the combination would result in some pretty high gearing that a land rover motor of any size would start to have trouble pushing.

I believe that the ratios of all 3 T-case gears are changed as part of the HRTC conversion. If this is the case then the only way you could fit the OD as well is to get the input gear recut (or a new gear cut) to match the HRTC input gear (if possible).

Thanks for the advice, i'll have a look at the input gear on that at the moment when i pull it apart.

And excuse my ignorance, but it currently has a pto winch on it, if the gear on that matches the gear on the OD, does that mean it will be ok?

And Shonky, it is a radio fitted military 109. will post pics when i work out how.

Originally Posted by Ben SIII

Thanks for the advice, i'll have a look at the input gear on that at the moment when i pull it apart.

And excuse my ignorance, but it currently has a pto winch on it, if the gear on that matches the gear on the OD, does that mean it will be ok?

And Shonky, it is a radio fitted military 109. will post pics when i work out how.

You just need to drop the oil pan or the PTO cover plate and count the teeth on the gear.

Depends on which PTO and how driven.