I see that the 84 sd uses a 722.315 trans and 85 uses 722.303. Does anyone know what is different? Must be gear ratios or something since they both bolt up to the 617. Just curious.

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85 300 SD ~ 115K
82 500 SEC Euro ??K
78 450SL 164K

I am pretty sure the vehicle speed sensor is the main difference for the 1985 tail shaft housing. Do you know if your cluster has a cable for the speedo?

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Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi

My 85 has electronic speedo. Does 81-84 have mech speedo? Don't know if 86 has elec or if even same trans. My MB tech data book only goes to 85.

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85 300 SD ~ 115K
82 500 SEC Euro ??K
78 450SL 164K

all the 126 SD"s have electronic speedos.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

1981-1985 300SD's and 1981 300TD uses the 722.303 trans. The 722.315 are used on 1982-1985 300D/CD/TDs.

Same gear ratios, except for as noted earlier the .303 has an electronic input for the speedometer.

1985 uses the higher stall speed torque converter and a different vacuum line setup for the modulator.



.

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1983 123.133 California
- GreaseCar Veg System

Thanks for setting me straight on that, as well.

__________________
Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi

Yes, thanks. My previous onfo was wrong.

__________________
85 300 SD ~ 115K
82 500 SEC Euro ??K
78 450SL 164K