I need to replace the left rear brake caliper on my '82 300 TD Wagon. I have read on the internet that the rear brake caliper for the wagon is different than the sedan and it costs about $300 per caliper. It looks like a standard brake caliper, I don't see anything that would make it any different. Does anyone know what the difference is, or if it really matters?

My search finds the same thing, don't know why it's different.

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83 SD

84 CD

the TD caliper is a slightly larger bore. to aid braking with a heavier load than the sedan could have.
if you go with sedan caliper, replace BOTH of the rear calipers.
I would attempt to rebuild yours in this case... if not destroyed with rust.

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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 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Had the same question a while back, and yes, the wagon caliper is different.
A sedan caliper will fit, but I found the correct wagon caliper rebuilt at napa for $80 each. They're working great, and the rebuild did look like good quality.
But if you want the best possible price, you could find a couple used sedan calipers real cheap and put them on yourself. Don't do just one side as vstech mentioned.

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'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

Put a sock on it.

Phil sells remans for $83.93.