Hey Dave wave
Yes the 360 uses a weight on the convertor. There is an early 2 piece weight and a later one piece weight.
I just swap out a 318-727 for a 360 in my 78 D100 and was lucky to have a good 360 convertor sitting here.

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72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
Moparmarks Parts & Restorations
Desert Mopar Metal
Grand Jct. CO
970-261-7039
http://moparmark.com/
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