Do the inferior sprung vehicles use Satan's arse lubricant by default ? In which case the cut & shut method may serve.
Superior vehicles use the auriferous liquid whose number is 89 + 1, and by it's number shall you know it.
Flying hither and thither it seeks out the smallest imperfection and unless your jointing skills are of Nobel prize standard some snottage is inevitable.
On the other hand it might work 
The idea works, after all its the way you do the crank seal
Question is how do you rejoin the spring (on the crank seal its got a hook to rejoin) ... How will you do that?
If you can find a way around that I can't see a problem