ground wire for rear axle

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That makes no sense. I don't think it is stock. Where does it bolt to the axle?Picture?
 
If you look under the cruiser, there are a few wires that ground different parts of the vehicle to the frame. So far, I have found four. Please let me know if there are any more.

1. Battery negative terminal to passenger side fender. (4 gauge) This same wire travels down and attaches again under the A/C compressor.
2. Transfer case bolt to underside of body (near where speedo cable inserts into passenger compartment). (12 gauge)
3. Engine (passenger side near spark plug 6) to firewall. (12 gauge)
4. Front axle where all 3 brake lines connect to frame. (4 gauge)

I hope it's not the breather tube...there's copper wire inside.
 
There is no reason to run a ground to the front axle. Unless, you ahve an electric locker
 
I've worked on my share of 60 front ends and never seen any ground to the axle; there's no compelling reason as MACE points out. The othe grounds you mention are all sound stock, although the negative battery leads should pass through a contact to the body then travel down and attach to the frame.

Are you sure the axle wire isn't some PO's attempt at a suspension travel limiter?
 
I thought that the wire could have been an aftermarket addition, but the wire is 4 gauge black w/ yellow stripe, just like the ground wire coming from the negative terminal passing through the contact to the body going down to the frame.

I think that more grounds are better for any vehicle. Especially if you are going to add a stereo amplifier and other electric equipment. It helps keep weird power anomalies in check...

I know it's not needed, but I will probably add a ground wire from rear axle to frame just to have a good solid ground plane for my electronics. I just didn't know if anyone had done this or know of any problems I may encounter.
 
There's a 'ground point' at the rear of your FJ60, body panel behind & above rear bumper; ground point for rear gate license plate lamp. Open tailgate & see where wire enters sill from gate, other side is ground point.

And there's two 'inside' rig. 'sort of' right behind the two outboard A/C outlets,up high, above kick panels: about 12 wires in a crimp block.

I have no earthly idea why one need a ground wire to the axle; esp 4ga !
 
One of the interesting tricks in the mobile communications trade is to ground the crap out of everything on the vehicle; to a common point. This point is usually the frame. This is done to reduce receiver noise while driving. There are kits available for static grounding the axle to the housing. One then grounds the axle housing to the frame. As the tires build up static in rotation, this configuration dis-charges the static. This configuration is used in most military communications vehicles.

The #4ga wire should be replaced with a 3/4 inch stainless steel insulated braid - #4ga stranded wire is not flexable enough.

Do the rear axle as well.

I thought only comm nerds like me did this; perhaps a PO was a comms guy.

...
 
dfmorse said:
One of the interesting tricks in the mobile communications trade is to ground the crap out of everything on the vehicle; to a common point. This point is usually the frame. This is done to reduce receiver noise while driving. There are kits available for static grounding the axle to the housing. One then grounds the axle housing to the frame. As the tires build up static in rotation, this configuration dis-charges the static. This configuration is used in most military communications vehicles.

The #4ga wire should be replaced with a 3/4 inch stainless steel insulated braid - #4ga stranded wire is not flexable enough.

Do the rear axle as well.

I thought only comm nerds like me did this; perhaps a PO was a comms guy.

...
Click to expand...

And we learn something new every day..........
 
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