For a stock 1963 Falcon Econoline there was only one choice for the Flywheel they came with a Stepped / also often referred to as a 'Dog Dish" these are a 132 tooth and had an 8 1/2 inch Clutch Assembly, used on all the early engines the 1960 to 1965 144, 170 and 200 Small Six's as well as the 1966 ford Mustangs with a 200 Six. That is if your also going to use all those same stock parts that you have on the back of your 144 or 170. I. E. the Small Bolt Pattern Block Plate, Small Bell Housing, the Stepped Flywheel with 8 1/2 Inch Clutch Assembly, and the stock Transmission, do you still have any of those parts now? If you need to find all those early parts would you want to go with the newer parts instead?
There were no 10 Inch Clutch's used stock on any of the 170, or 200 sixes so that listing is the wrong one and is probably for a SBF V8 or else it was miss typed. With the later 170 & 200 Six car engine block's (like 1966 & up) it also opens up the use of their larger Bell Housing's, its matching Block Plate, the larger Flat type Flywheel, with its bigger and much easier to find 9 Inch Clutch assembly these were used on some of the 1966 200's as well as all of the later model 1967 up 200 engine block's that all will have the Duel Bolt Pattern. There was a 9 3/8 Inch Clutch assembly used in some heavey duty apts like the 1966 to 74 Bronco 170 Six's and some Millitary Spec Econolines and others its kind of rare now days to find them. So you also have that option to up grade to those parts and they also came with the better 3.03 all Synchro 3 Speed Transmission that first came out in the1963 Econoline's.
This info is only for those 1960 to 1965 Early Single Bolt Pattern Short Block's using the 8 1/2 Inch Clutch Assembly for the Stepped / or Dog Dish Flywheels.
It is important for proper operation and the clutches holding ability with the 8 1/2 inch Dog Dish type flywheel that it measures a depth of exactly 1 inch from the pressure plate mounting ring down to the flywheels clutch disk face surface area. Modern Driveline also makes brand new Steel Billet 8 1/2 inch 132 tooth Dog Dish flywheels.
When I last researched these beside the stock Re- Built 8 1/2 Inch Clutch's there were suppose to be at least 4 companies that recently started to make brand new stock spec 8 1/2 inch clutch kits used for the 1960 to 1966 years of Ford 144 & 170, & 1963 1/2 to 1965 and they were also still used on the 1966 Mustang 200's engines with the 2.77 Transmissions and likely others like Falcons and Comets. These were the latest currently confirmed listings at that time, the Zoom MU-721163-1, the RhinoPac # 15132-05292860 & # 15132-07455300, Perfection Clutches @ 1 800-258-8312 option 4 was another but I wasn't able to find a part number listing so you would need to call. Also Exedy Clutches are suppose to have a clutch kit I couldn't find a part number or catalog listing so research or call them too. In any case these are all stock application clutch kits. The kit that Modern Driveline sells is geared towards a T5 swap so is a conversion clutch, it probably uses one of the above stock type pressure plates, with a custom disk made up with a larger diameter center hub or is a disk from a different application, the stock Ford 8 1/2 inch disk is 10 Spline X 15/16 Diameter).
There are also two Diaphragm type pressure plates that a number of people have used with great results "Rick Wrench" was the first one known to try this experimental combo on his Falcon Wagon logging 100,000 trouble free miles before he needed to replace it. These would require some machining work to the upper flywheel mounting ring to install them and some clearance need for the wider pressure plate springs. To use these you would need to use a disk like you are using now for fitting into the stock Ford transmissions or to use a conversion T5 disk if you are doing that kind of swap.
First one he used was the 1968 to 1994 Alfa Romeo is a 215 MM pressure plate from a 1750 or 2000 GTV, a 1750 or 2000 Spider, the Flywheel depth is machined to a depth of .875, this is the one lasted a 100,000 miles.
Second one he used when it was time to replace that first one was from a 1984 to 1986 Mercedes 190 E 215 MM Flywheel. The Flywheel depth for it is .885, I think he's still running this unit his last last report it was at over 30,000 trouble free miles and that was many years back.
Hope there is some info there that is useful to you, best of luck on your swap.
