C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

FX-3 question

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Old Nov 7, 2010 | 01:05 PM
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Default FX-3 question

Are all the accuators the same, front and rear? Can a rear accuator be intalled on a front shock and vise sersa?
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Old Nov 7, 2010 | 01:23 PM
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Eckler's lists front and rear with different part #s.
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Old Nov 7, 2010 | 04:34 PM
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The only real difference between front and rear actuators is the length of the pigtail. One is much shorter than the other.

They can be swapped side to side with no problem.
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Old Nov 7, 2010 | 05:44 PM
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Originally Posted by c4cruiser
The only real difference between front and rear actuators is the length of the pigtail. One is much shorter than the other.

They can be swapped side to side with no problem.
You are talking about the electrical pigtail. Then if I get a good buy on an accuator, I can modify the length of the pigtail with no problem.
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Old Nov 7, 2010 | 05:56 PM
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Default Fx3

Which pigtail is the longest? The longer one could be used either place.
Have you had any experience rebuilding an accuator?
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Old Nov 8, 2010 | 09:22 AM
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IIRC, the longest pigtail is for the front shocks. So those can be used in the back but the rear actuator can't be used in the front.

As far as rebuilding the actuator, there is a company that rebuilds the actuators and used an aluminum ring to replace the OEM-style plastic ring. Some members have used them instead of paying the high price of OEM actuators.

Here's the website
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Old Nov 8, 2010 | 02:42 PM
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Thanks Cruiser.
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Old Nov 9, 2010 | 01:42 AM
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Rocket,

Real important to note. Earlier FX3 systems had a different gear turning ratio (nbr degrees from stop to stop) than later systems. I don't remember the date ranges, but make sure you get one from the same year or know the what date range you need. The info is burried in here somewhere.
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Old Nov 9, 2010 | 09:23 AM
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Originally Posted by Jay Axson
Rocket,

Real important to note. Earlier FX3 systems had a different gear turning ratio (nbr degrees from stop to stop) than later systems. I don't remember the date ranges, but make sure you get one from the same year or know the what date range you need. The info is burried in here somewhere.
I think its 89-91 and 92-95.
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Old Nov 9, 2010 | 09:28 AM
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True, there are two different ranges in degrees that the shock rod turns, but the stops that control the amount the rod turns in degrees is on the small rod-mounted gear and rod itself, not the actuators. Actuators are all the same in terms of how they operate (except for the pigtail length between front and rear).

The FX3 shocks types by year are 89 thru 91 and 92 thru 95.
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