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Seabreeze

Member Since: 23 Mar 2016
Location: Suffolk
Posts: 47

1996 Defender 90 300 Tdi CSW Epsom Green

300Tdi Gearbox Relacement

I am loosing synchro on 1st to 2nd and 2nd to 3rd, more so when the engine is cold. Since I am changing the chassis this would be a good time to get a reconditioned gearbox. Ashcroft Transmissions offer re-con gearbox and also have an option of a modest change the gearing on the 5th gear. In this way it will rev lower at high speed, so motorway driving should be quieter. Has anyone had this mod, is it effective/worth it, any downsides?

6th Apr 2016 8:18pm

Alex1976

Member Since: 23 Jan 2013
Location: Buckingham
Posts: 596

I had the Ashcroft high ratio mod on my defender when it was manual and really rated it. I would only do it if you have tuned the engine otherwise I feel it doesn't have enough power to pull the higher gearing.

6th Apr 2016 8:22pm

Seabreeze

Member Since: 23 Mar 2016
Location: Suffolk
Posts: 47

Thanks, I am also fitting an Allisport double sized intercooler, so I have the chance to tweak the fuel pump. Will this be sufficient tuning to cope with the higher gearing?

6th Apr 2016 8:27pm

Alex1976

Member Since: 23 Jan 2013
Location: Buckingham
Posts: 596

I would have thought that should be fine to cope with it.

6th Apr 2016 8:29pm

Seabreeze

Member Since: 23 Mar 2016
Location: Suffolk
Posts: 47

Many thanks!

6th Apr 2016 8:40pm

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