Garage door question - Help

 Hi,

Can someone answer a simple question regarding a swing up/down type
garage door, does one shorten or lengthen the spring path if the door is
unbalanced and falls downward?  Right now it balances at a height of 5
feet (should be 3 ft) but because of the threaded U-bolts onto which the
springs are attached at the bottom I've about run out of thread if the
path needs to be shortened, I'd have to move the entire bracket(s) down
a couple of inches, a time-consuming task.  I haven't been able to
figure out if this needs to be done. Moving the nuts on the U-bolt is
very time-consuming so trial and error can easily take a few hours. My
intent is to move the balance point about 3 feet above ground level.

TIA
--
The Guy

  Hi,

I need to know if the spring path on a swinging (up/down) garage door
need to be shortend or lengthened to move the balance point lower. The
door now balance about 5 ft. about ground level, I want to lower it to 3
ft. but the process to change the path length is very time-consuming as
there are threaded U-bolts involved and I'm running out of thread (there
are other complications). I need to make a decision as to whether to
lower the lower end brackets into which the U-bolts pass so the path can
be further shortened.

TIA
--
The Guy