Jeep: Performance and control issues with lifts what should I beware of?

If the suspension and body lift was done properly with the correct tire off
set there should not be a problem. If you are just going to be on the
highway and you have off road tires change them out for a tire that is
mainly for the highway. Remember GOOGLE is your friend.

--
HarryS My 2¢
<com> wrote in message
news:googlegroups.com...
| Yes, a inexperienced peson wanting a toy... I recently purchased a jeep
| with a 2.5" skyjacker suspension lift 0.5" shackle lift and a 1" body
| lift. My question is control and safety on highway driving. Someone had
| told me that a shackle lift makes control an issue with a short base
| vehicle. being that I would use this vehicle in the summer to drive on
| a major hwy 40mi one way to work, would it be recomended to scale down
| the lifts and which would be best. I'm assuming that some of the drive
| train has been modified to accomodate the lifting, so what should i
| look for in reversing those issues? I'll do some off roading but it is
| also a time to time work vehicle.
|
| Wazz00
|

Hi - what is ment by "correct tire off" - thanks

HarryS wrote: 
tire off 
the 
is 
jeep 
body 
had 
base 
on 
down 
drive 
is 

Hi - what is ment by "correct tire off" - thanks

HarryS wrote: 
tire off 
the 
is 
jeep 
body 
had 
base 
on 
down 
drive 
is 

"correct tire off-set" This refers to the backspacing of the rim and
controls how far in/out your tires are in relation to your fenders.
-Brian

<com> wrote in message
news:googlegroups.com...
Hi - what is ment by "correct tire off" - thanks

HarryS wrote: 
tire off 
the 
is 
jeep 
body 
had 
base 
on 
down 
drive 
is 

Oh- I see... that is to adjust the wheelbase wider for compensation of
the taller vehicle?

Just one more quick quick question...

With the suspension lift, what modifications may have been done to the
drive shaft ect.. to compensate for the greater angle between ends of
the drive shaft?

thanks for the jeep 101 tutorials



Cherokee-Ltd wrote: 
a 
Someone 
drive 
i 
it 

<com> wrote in message
news:googlegroups.com...
Oh- I see... that is to adjust the wheelbase wider for compensation of
the taller vehicle?

*******No, although that would be benficial. Wheel offset is to correct
interference issues and is usually more critical for the steering axle. The
correct offset, even a 1/4" may make the difference in rubbing a control arm
when turning or ripping a fender flare off when the suspension is fully
compressed.

Just one more quick quick question...

With the suspension lift, what modifications may have been done to the
drive shaft ect.. to compensate for the greater angle between ends of
the drive shaft?

*******The driveshaft angle must be correct or the result is vibration. This
occurs when the universal joints have different angles. When the driveshaft
spins on an angle, the bottom of the joint is actually turning at a
different speed than the top of the joint. When the output shaft (transfer
case) and input shaft (rear end) are aligned correctly, they off-set
eachother and eliminate vibration. With a regular driveshaft, you DO NOT
want the ends pointing at eachother, you want them parallel to eachother.

At extreme angles like those found on a lifted TJ, not only do you need a
way to compensate for high angle, you need a longer driveshaft and a method
for preventing the driveshaft from disconnecting at the slip yoke on the
transfercase due to increased suspension travel. This is when you install a
"slip yoke eliminator" (SYE) and a "double cardon" or "constant velocity"
(CV) driveshaft.

By eliminating the slip yoke from the transfer case, you need an extendable
driveshaft. The driveshaft must extend when suspension extends and contract
when the suspension compresses. The slip yoke is built into the driveshaft.

A double cardon or CV joint on the driveshaft solves the angle issue. When
you install it, you aim the rear end yoke at the transfer case yoke. To
visualize, the front of the driveshaft bends down from the transfer case
yoke via 2 universal joints that compensate for eachother and runs inline
the rest of the way into the rear end.
See here: http://tinyurl.com/5x9yo

-Brian



Cherokee-Ltd wrote: 
a 
Someone 
drive 
i 
it