Changing Lever
Action Shocks To Telescopic
By Karl Schluter
-Low Zep
To match
reset springs or to replace tired lever action shocks, I recommend the
insertion of telescopic shocks. I weld a 10mm thick by 100mm wide plate between
the inner wheel tubs, on top of the diff tunnel its self (inside the boot). I
do this instead of a cross member underneath the car as this way allows room
for a large exhaust system or fuel pumps or other modifications like a Watts
linkage etc.
Here in New
Zealand, I use VH Valiant lower spring plates but this depends on the U-Bolt
pattern as well as whether the lower part of the shock has a pin or eye
mounting. Mkll Escort spring pads can also suit. Zephyr spring plates could
have a boss welded on them to suit as well. When I drill the top mounting plate
for the spring eyes, I do them as far apart from each other as possible (from
inside the boot) to get the shock absorbers as upright as possible as to
improve rear suspension tuning and ride.
When
choosing a shock (I use a Koni adjustable model made
for Holden 1 tonner’s) jack the car up with the wheels unsupported but clear of
the ground (car body on stands) and measure between top and lower shock
mounting points for an extended shock measurement. Then take a measurement
consistent with the car diff being on its rubber bump stops, as if the car rear
suspension was fully compressed and take this as the compressed shock
measurement (again between shock mounting points).
These 2
measurements should then be taken to a shop specialising in shock absorbers etc
and they will have a chart that should line you up with suitable shock
absorbers that work in this range. Do extend the shocks in and out with them
held upright before mounting in the car to bleed air from inside the shocks.
For a further performance modification, the right hand shock could be mounted
in front of the diff with the left shock still mounted behind the diff, this
way the right hand shock helps prevent spring wrap up under acceleration.
Disclaimer: The advice
and guidelines given in these articles are given in good faith. The owners
and managers of the Galeforce Zephyr site will take no responsibility for
any injuries or loss sustained while carrying out the described tasks and
procedures or any consequences arising. Please read the Safety First Article
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