97 tacoma extended cab 4x4. had new leaf springs installed. The truck sits about 2 in. higher now in the rear. On the way home from the shop I noticed a high frequency vibration when below 35 mph. At higher speeds no vibrations noted. No vibration issues prior to the leaf spring replacement.

SOURCE: Can anyone give me some instructions to add a leaf

This should be pretty close for you since most add a spring(s) are pretty much the same.

Note: Check U-Bolt length prior to disassembly, Longer U-Bolts may be required.
1. Park the vehicle on flat level ground. Set the emergency brake and block the tires.
2. Raise the vehicle so that the tires slightly touch the ground. Support the frame rails using jack
stands.
3. Remove the U-Bolts from one side only. Remove the spring eye bolts and remove the leaf spring
from the vehicle.
4. Place 2 C-Clamps around the leaf spring as shown in Photo #1. Tighten C-Clamps against the
leaf spring.
5. With C-Clamps tightened onto leaf spring, remove the center tie bolt using a pair of vice grips to
hold the head of the bolt. “Slowly” remove the C-Clamps to release the spring tension.
6. Note the location of the tie bolt hole in the add-a-leaf. If the hole is not centered, measure the factory
spring to determine the long end and short end. Be sure to install the add-a-leaf with the
long end towards the long end of the leaf spring. Install the new add-a-leaf onto the “bottom” of
new leaf spring. If installing more than one leaf per side, install the longest first, then the shortest.
7. Use a screw driver to line up the tie bolt hole in the leaves. It is recommended to leave the screwdriver
in to help keep the leaves aligned as you tighten the C-Clamps. Tighten until there is
enough space to install the new tie bolt. With tie bolt installed, tighten the nut by hand. Then continue
to tighten the C-Clamps. Repeat this process until leaves are pulled together. See diagram
below. DO NOT USE THE TIE BOLT TO PULL THE LEAVES TOGETHER. THIS CAN RESULT
IN AN EXPLOSIVE DISASSEMBLY AND POSSIBLE INJURY!
8. Tighten the center tie bolt to torque specifications provided.
9. Reinstall leaf spring into the vehicle. Install U-bolts. Repeat this process on the opposite side.
Torque Specifications:
3/8” Tie Bolt = 17 Ft. Lbs.
7/16” Tie Bolt = 27 Ft. Lbs.
1/2” Tie Bolt = 41 Ft. Lbs.
I-FFAL 1-03

SOURCE: frame vibration at 30-35 mph and again at 60-70

Find a tire shop that has a HUNTER GSP 9700 road force balancer. this puts a load on the tire and will find a bad tire, or rim, and it will tell the operator where the tire should be orientated on the wheel for best run out. If its a tire/wheel problem this will find it. Call a high end tire store or dealer and ask if they have one.

Testimonial: "Thanks I'll search for the right tire shop"

SOURCE: removing brake line from 2002 toyota

make sure you use a tubing bender when making up the new tubing or you with kink the tubing trying to bend it

SOURCE: How do you remove the

The plastic button pieces just pop out or thp panel is just held on with inside clips which just pop out.Hope this helps.