Here's a explanation of why a "
guibo" is used in a driveshaft assembly:
"A
giubo (
/ˈdʒuːboʊ/ JEW-boh; etymology: giunto Boschi), also known as a
flex disc, and sometimes misspelled as
guibo, is a flexible
coupling used to transmit rotational torque between the
drive shaft and the companion
flange on
mechanical devices, such as an automobile engine.
The giubo is made from flexible
synthetic rubber and
is designed to allow some angular misalignment while reducing driveline vibration in mechanical power transmission applications."
Not bad for a South Carolinian!
Design approach has been around for awhile. When I had the 3 Merkur XR4Ti's, the driveshaft had a
guibo in it. Only issue was Ford wouldn't sell you the
guibo. You had to buy the entire driveshaft from them. And so like the Crossfire Owners, the Merkur Owners Group learned where to get the
guibos & how to disassemble & re-assemble the driveshaft. We usually replaced the center support bearing while we were down there.