66 Dart station wagon vs 66 Valiant driveshaft

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Valiant63

Valiant63

Early A-body Valiants
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I am needing a driveshaft for the 66 Dart station wagon that I just got, but the wagons are hard to find. Isn't the driveshaft for the 66 Valiant the same as the Dart station wagon, since the Dart wagons are the same length as the Valiants? Has to have the slide in front yoke. Nothing before 66 will work, and I don't think that any thing after 66 will work, either. A 66 Dart driveshaft wont work, since it is too long. Who knows for sure about the length?
Oh, it is a slant six auto with a 7 1/4 rear, if that really matters.
 
Measure that puppy and post it back here, I got a bunch of shafts for 66 cars! Measure from the back of the cup on the differential to the metal part of the tailshaft and I'll subtract the yoke difference and see if I can come up with it!!
 
'66 Dart wagon + Valiant all models + Barracuda, with 7-1/4" rear and automatic: driveshaft is 51.61" long. You don't need to match this precisely, you've got at least 0.75" worth of plus-minus without making any problems.

But as it happens, '67 Valiant + Barracuda with 7-1/4" rear axle and automatic, 3-speed, or 4-speed trans also uses a 51.61" driveshaft. By '69 the figure is 51.43", still completely compatible. In '72, the figure is still 51.43" and that applies not only to certain 108" wheelbase cars but also to certain 111" wheelbase cars. By '74 it's 51.44".

So no, it will not be difficult to get hold of a driveshaft for your car. Aside from '66 Valiant/Barracuda + Dart wagon, any 108"-wheelbase '67-'76 A-body (that is '67-'73 Valiant except Scamp, '70-'76 Duster/Demon/Dart Sport) with the appropriate transmission and rear axle combo, and certain '67-'76 111"-wheelbase A-bodies (Dart, Scamp) with the appropriate transmission and rear axle combo will donate one of the correct length, and there very well might be compatible driveshafts from certain F- and M-body cars as well.
 
Oh, I'm not a computer or a savant or anything, I had to dive into the factory parts cattledogs to pull up the figures. But I've been through this driveshaft-interchange type of situation often enough to know it's almost never one-year-one-model-only.
 
Is this what you need ?

20160722_232144.jpg
 
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