I've built powerglides with Gear Vendor on the back for monster trucks, diesel powered dragsters, land speed racing.
I'd say the unit is tough. Talk to Gear Vendors, the units are not all built the same depending on intended use & power.
Land speed racing unit is setup different than a unit in a dragster
Some people are like Slinkies... Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs.