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View Full Version : Is a safety cable required for the rear 3-link suspension



CDXXVII
06-01-2011, 05:31 PM
I have seen in several builds the installation of a safety cable on the drivers side between the frame and the rearend assembly. It seems it is there to keep the rear end from overtravel thus causing binding on the driveshaft.

Are you installing this cable? Where do you get the cable? Length? Connection points?

Thanks

rponfick
06-01-2011, 08:15 PM
I installed a cable not because of driveshaft issues, but to keep axle from resting on frame brace when jacking up car. Also to prevent overly agressive rebound on bumps, etc., from possibly contacting frame brace.

I got my cable at Auto Zone and it is designed for pickup tailgate support. Had fitting on each end and was simple bolt on action. Do search on other site and I think you will find part no. and length required.

Ralph.

Joee
06-02-2011, 10:49 AM
Not really I guess it depends on your shocks. My FFR Konis stop the axle from contacting the frame at full drop.

Gumball
06-02-2011, 11:21 AM
What Joee said. I checked with FFR and they said the cables are not required with a 3-link, but wouldn't hurt if installed. I went ahead with a set of cables from FFR, but found that they limited the rear suspension rebound too much. Without the cables, my suspension under full droop just misses the 3-link frame tube on the driver's side. Since there is no contact, I took the cables off.

AC Bill
06-05-2011, 09:42 AM
This subject was discussed in length a few time in the past. Interestingly enough it seems some need/want them, others not. My kit ordered with the 3 link option, came with limiting straps, yet I had read in the manual that they would not be needed with the 3 link.

When I saw that my left axle tube was going to rest on the 3 link frame brace, I contacted FFR, and rec'd an email that the limiting straps should be used. (funny how they gave Gumball a different answer?) This was because the Koni shocks has longer travel then the Bilstien shocks, supplied in the past, (and what the manual was still referring to). Not sure about the Pro shocks some used, as to if they were needed or not?
I also question the shocks being used to support the rear end, when the car is jacked up. That's a fair amount of weight, with tires, wheels, rotors, calipers, etc..
I have the straps and have had no handling issues. I gather you would really have to lean the car into a corner, to have that strap come into play..not sure of how Gumball has his car set up, to have had the rebound affected by them..?
You could add one strap closer to the center of the rear end, as some have done. This apparently is a good way to avoid what Gumball had happen, and still have the rear end supported.