Automatic Gearbox Compatibility

XJSDriver · Jun 20th, 2018, 13:57

I have a late Xc90 but am wondering if it is the same gearbox fitted to most later Volvos but with perhaps different ECU and or fittings e.g. transfer box?
Has anyone tried using box from different model Volvo or even brand such as Saab with any success?
Google tells me that for all uses the gearbox has same ratios and also valve body looks same so am guessing should be able to use box from another model of Volvo and swap over the ECU and any brackets needed?

Tannaton · Aug 12th, 2018, 09:44

You must get a gearbox from another AWD car as you need the transfer box drive.

Whilst the ratios maybe the same - the final drive are not - one from a petrol car would not be suitable. Not sure if the final drive differs between 60, 70 and 90 models. You should retain your ECU.

I have successfully dropped a number of gearboxes into XC90s from different year and model Volvo cars but always the earlier 5 speed AW55.

Jun 20th, 2018, 13:57	#1
XJSDriver XJS Driver Last Online: Nov 10th, 2018 15:02 Join Date: Apr 2017 Location: Hitchin	Automatic Gearbox Compatibility I have a late Xc90 but am wondering if it is the same gearbox fitted to most later Volvos but with perhaps different ECU and or fittings e.g. transfer box? Has anyone tried using box from different model Volvo or even brand such as Saab with any success? Google tells me that for all uses the gearbox has same ratios and also valve body looks same so am guessing should be able to use box from another model of Volvo and swap over the ECU and any brackets needed?

Aug 12th, 2018, 09:44	#2
Tannaton Premier Member Last Online: Today 20:56 Join Date: Aug 2014 Location: Beverley, East Yorks	You must get a gearbox from another AWD car as you need the transfer box drive. Whilst the ratios maybe the same - the final drive are not - one from a petrol car would not be suitable. Not sure if the final drive differs between 60, 70 and 90 models. You should retain your ECU. I have successfully dropped a number of gearboxes into XC90s from different year and model Volvo cars but always the earlier 5 speed AW55. __________________ 2008 XC70 D5 SE Sport NAV, 2007 V50 2.0D SE, 2003 XC90 D5 SE, 2009 Ford Ranger SC, 1997 Land Rover Discovery 300Tdi (special extra rusty edition), 1977 Triumph Spitfire 1500

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