The correct Dexter E-Z Flex Suspension Kit for a Dutchmen Voltage Toy Hauler is part # K71-652-00 which fits an axle spread of 33". Please note, the weight capacity for said equalizers is not an exact rule but rather just a guide. Therefore, you could have 7,200 lb axles for example and still be able to use the above. view full answer...
The 1/2" SAE Swivel fitting on the # 37207-31465 you were looking at would require a 1/2" SAE male fitting. SAE fittings have a straight thread and require an O-Ring for a proper seal, while NPT uses its tapered thread pitch for a seal. Using the two together can lead to leaks.
You should be able to find a 1/2" NPT female to 3/8" male flare fitting at your local hardware store and from there you could use a 3/8" swivel female flare fitting hose to whatever style fitting you need to connect... view full answer...