Front Strut Replacement Page 2/2
1) Insert the new dampener in the strut housing. Add
a coolant or oil bath in the housing, filling it up about 1-2"
below the top of the assembly. Consult your strut instructions for
more about this.
2) Place the housing in a vice and tighten the gland
nut (a new one should've come with the struts) with a large pair
of channel locks or monkey wrench. Make sure not to score or scratch
3) Once the appropriate torque is applied to the gland
nut measure the distance left in the threads. It should be within
spec of the dampeners. Consult their directions. You may need to
obtain a spacer. (btw, I had no problems with the Illuminas.)
4) If you are replacing the stock springs with performance
lowering springs, you most likely will need to cut the stock bumpstops.
Consult the directions that come with your new springs. For my ST
springs it was recommended to cut at least half of the bumpstop.
I cut along the notch as indicated below with a hacksaw.
5) Slide the bumpstop on the strut, and place the
new spring. Make sure the spring is placed the correct way.
Also ensure that the end of spring sits off the edge
on the lower spring perch.
6) Next up is the insulator and upper spring perch.
Notice the notch in the perch should fit into the top of the strut,
so that it fits only one of two ways.
The correct way is so that the arrow points to the
outside of the vehicle. Double check how the assembly will fit in
the car to get this right.
7) Slip a new dust seal over the top of the strut.
8) Now attach the strut top and the new bolt that
should've came with the struts.
If you purchased the TRD bushing set and happen to
be doing this modification while you have the struts out, you will
need to either drill a hole in the strut mounting location or press
out one of the bolts in the strut top. I decided on drilling the
holes. Here's the new strut top placed upside down to mark the location
of the new hole. The strut top only goes in one way, notice the
bolt circled in blue is offset from center.
Here's the new hole.
9) Now it's time to put the assembly into the car.
Push the steering knuckle out of the way and insert the top of the
assembly first. Make sure to align the stut top appropriately so
that the top spring perch is pointing the correct way. Remember
the "OUT" Arrow in step 6?
10) Temporarily secure the strut assembly by placing
the 3 (or 4 if you have the TRD strut top) 14mm nuts.
11) Position the assembly onto the steering knuckle.
This takes a little wrestling with the two pieces. You may need
a mallet and block of wood to encourage them along. Insert the two
17mm bolts making sure to place the camber adjuster in its previous
12) Tighten everything down to spec and put everything
else back together that you took off to get to the strut assemblies.