I have 245 volvo year 75 this volvo has an 4 speed manual transmission and I would like to change to an 5 speed transmission. do you think it possible to change? maby a newer transmission will b

Dec 17th, 2005, 18:28

Mike_Brace · Dec 17th, 2005, 21:50

I assume this was being posted as a question not a poll. The later transmission (box and prop) will fit from later cars (you'll need the flywheel as well) and you may find the flange on rear axle is different size requiring a changeso it'll all bolt up.

Mike

Clifford Pope · Dec 19th, 2005, 08:31

The number of spines on the gearbox input shaft changed at some point, so may need a new clutch to match.
Also early gearboxes had a take-off point for a cable-driven speedometer. Later (all?) M47s didn't because there is an electric pick-up point in the rear axle instead.
I have read you need to take care if removing/swapping the flange on the rear axle. Is this the kind with a collapsible spacer that cannot be re-used? Or it good enough simply to observe the original torque and position and re-tighten to the same point?

classicswede · Dec 30th, 2005, 20:12

I would go for an o/d box myself. I think the gear cahange is better and its nice being able to just switch up a gear.

Dai

ravennexus · Jan 4th, 2006, 18:06

does your 75 have a OHV B20, is so the bellhousing for the later box's is different as the OHC redblocks sit at an angle while the OHV redblocks sit straight up. though i think the early bellhousing can possibly mate to the later boxs but i'm not sure.

Dec 17th, 2005, 18:28	#1
GIDI Guest Location:	I have 245 volvo year 75 this volvo has an 4 speed manual transmission and I would like to change to an 5 speed transmission. do you think it possible to change? maby a newer transmission will b

Dec 17th, 2005, 21:50	#2
Mike_Brace Former contributor Last Online: Jul 2nd, 2022 07:54 Join Date: Dec 2004 Location: Rhosgoch, Anglesey	RE: I have 245 volvo year 75 this volvo has an 4 speed manual transmission and I would like to change to an 5 speed transmission.do you think it possible to change?maby a newer transmission will b I assume this was being posted as a question not a poll. The later transmission (box and prop) will fit from later cars (you'll need the flywheel as well) and you may find the flange on rear axle is different size requiring a changeso it'll all bolt up. Mike __________________ A Volvo is for life not just for Christmas!

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Dec 19th, 2005, 08:31	#3
Clifford Pope Not an expert but ... Last Online: Yesterday 12:45 Join Date: Dec 2001 Location: Boncath	The number of spines on the gearbox input shaft changed at some point, so may need a new clutch to match. Also early gearboxes had a take-off point for a cable-driven speedometer. Later (all?) M47s didn't because there is an electric pick-up point in the rear axle instead. I have read you need to take care if removing/swapping the flange on the rear axle. Is this the kind with a collapsible spacer that cannot be re-used? Or it good enough simply to observe the original torque and position and re-tighten to the same point?

Dec 30th, 2005, 20:12	#4
classicswede Trader Volvo in my veins Last Online: Yesterday 23:53 Join Date: Dec 2004 Location: Anglesey	I would go for an o/d box myself. I think the gear cahange is better and its nice being able to just switch up a gear. Dai

Jan 4th, 2006, 18:06	#5
ravennexus Member Last Online: Nov 4th, 2018 15:48 Join Date: Nov 2001 Location: rhyl	does your 75 have a OHV B20, is so the bellhousing for the later box's is different as the OHC redblocks sit at an angle while the OHV redblocks sit straight up. though i think the early bellhousing can possibly mate to the later boxs but i'm not sure.

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