M46 j/p type overdrive versus p type

baccara1 · 11-06-2021, 04:10 PM

Hi
I currently have a 1988 740 with a j/p marked overdrive.
I have a newer p type and am wondering if it would be compatible with the existing m46.

It looks identical from the exterior.

Many thanks

Andrew

hiperfauto · 11-06-2021, 04:19 PM

I don't believe you can stick a P type OD on a trans that has a J or J/P type. From what I understand the output shaft of the transmission is larger for P type OD's.

baccara1 · 11-06-2021, 05:51 PM

Many thanks for the info

sbabbs · 11-13-2021, 03:03 PM

ONly J/P marked overdrive on m46 I ever saw was on a 16v car. I don't know the size of the shaft hole is but yeah P has bigger shaft hole then J. Curious what the P/J size shaft hole is.

745T+ · 11-14-2021, 09:41 PM

Quote:

Originally Posted by sbabbs

ONly J/P marked overdrive on m46 I ever saw was on a 16v car. I don't know the size of the shaft hole is but yeah P has bigger shaft hole then J. Curious what the P/J size shaft hole is.

That was at the old north Portland U-Pull It. You pulled the flywheel, and left the transmission. It went into my son's car, and was functioning perfectly when it was replaced with an M90. M46 transmissions have become scarce. They were plentiful 5-20 years ago.

sbabbs · 11-15-2021, 01:19 PM

Yes I remember it was you got that. I still have that other m90 I got from you, still gotta put it in one of these junkers one of these days

11-06-2021, 04:10 PM	#1
baccara1 Newbie Join Date: Oct 2021	M46 j/p type overdrive versus p type Hi I currently have a 1988 740 with a j/p marked overdrive. I have a newer p type and am wondering if it would be compatible with the existing m46. It looks identical from the exterior. Many thanks Andrew

11-06-2021, 04:19 PM	#2
hiperfauto The Librarian Join Date: Nov 2011 Location: So Cal	I don't believe you can stick a P type OD on a trans that has a J or J/P type. From what I understand the output shaft of the transmission is larger for P type OD's. __________________ 240 Alcantara Shift Boot Cover (164 & 72- 140 too) Rare, Race & R-Sports Parts Colored B/S Brake Hoses 140/160 and more Volvo Advertising Stuff -

11-13-2021, 03:03 PM	#4
sbabbs Board Member Join Date: Dec 2006 Location: Rushing Lane, Scappoose, OR	ONly J/P marked overdrive on m46 I ever saw was on a 16v car. I don't know the size of the shaft hole is but yeah P has bigger shaft hole then J. Curious what the P/J size shaft hole is. __________________ 1988 245 White slicktop M47 Wagon! 93 b230f. LH 2.4 STS flat flywheel. 1990 745 B230FT Getrag JohnV flywheel 240mm clutch 13c A-cam 3.54 G80 548K 1991 740SE B230FT NPR Strut braces IPD bar A cam 550cc EV14's. 3.73 G80 M90 to put in. 1995 940 White racing wagoon. 13c m90 to put in

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11-06-2021, 05:51 PM	#3
baccara1 Newbie Join Date: Oct 2021	Many thanks for the info

11-15-2021, 01:19 PM	#6
sbabbs Board Member Join Date: Dec 2006 Location: Rushing Lane, Scappoose, OR	Yes I remember it was you got that. I still have that other m90 I got from you, still gotta put it in one of these junkers one of these days