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Old 01-29-2008, 02:26 PM
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Join Date: Jan 2008
Posts: 2
83 300td wagon transmission swap

Hello and thanks,
I have a 83 300 td wagon with a bad trans, I found a good low mile one out of an 85, the owner says it is from a 300d, but he says that he checked and the trans will fit a CD or TD, but he insists also that it will only work in an 85?
Is there any truth to this? My references say that from 82 to 85 cd/ td/ and dt will work fine in my 83 wagon the trans and engine are the same as well as the chassis on some. If the trans is different what needs to make it work?

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Old 01-29-2008, 02:35 PM
rrgrassi's Avatar
mmmmmm Diesel...
Join Date: Jun 2006
Location: Royse City Tx
Posts: 4,875
The torque converter has a higher stall speed.

70's SPM #5608 Fairmont A-4 MOW car

06 VW Jetta TDI 280K miles

03 VW Golf TDI 5 speed 400K Miles Engine died

RIP--Lost in fire...82 300D 322K was My Daily Driver-On the search for a w126 now...

90 Dodge D250 5.9 Cummins/5 speed. 400K
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Old 01-29-2008, 02:36 PM
JimmyL's Avatar
Rogue T Intolerant!!!
Join Date: May 2004
Location: Sunnyvale, Texas (DFW)
Posts: 9,673
The trans is different, but it will work also. There is something about a higher stall speed torque converter....
The '85 tranny also has a tach pickup on the bellhousing, which your year model won't need. You need to go ahead and leave the pickup attached so the opening will be blocked off for water intrusion.
Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John
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Old 01-29-2008, 02:41 PM
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Join Date: Jan 2007
Location: Richmond Virginia
Posts: 309
i have read somewhere about different sized pilot bearings, i was just about to post some questions in reference to this. I have an 85TD that needs a new transmission ( new from the PNP) what year range can go in ? true of false - transmissions from cars with turbos can go into nonturbo engined cars but not the other way around ?
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Old 01-29-2008, 02:53 PM
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Join Date: Jan 2002
Posts: 18,355
Also, consider the fact that many people have come to this forum with what they think are bad transmissions only to find out that adjustments needed to be made. These MB transmissions are notorious for appearing to have serious problems when they don't.
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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Old 02-01-2008, 06:34 PM
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Join Date: Jan 2008
Posts: 2

Thanks for the info. The higher stall speed should be ok, it is a lower speed that would hurt, correct? The tranny is a 123 chas and a 1722.315 and so is mine and according to everything is good? but not every number may match up, how important is all that?
Thanks again

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