Hobbs Camaro (Old Drag Car)

[Stielow]

Originally Posted by Blown353

Mark, how do you normally run the brake hoses and wheel speed sensor wires to the rear axle for the ABS? Do you drop them all near the center section and run them along the axle like GM routed the brake lines on these cars originally, or you you drop each side down independently near the hubs like many late model cars with IRS do?

Just asking because I'm adding ABS to my car, and trying to decide how best to run things to the rear hubs and calipers. I'm leaning towards dropping both brake hoses and the speed sensor wires above the center section and then running them down the axle tubes to the rear hubs.

The rear brake lines run down the sides outside the frame rail.

The wiring comes off the ABS module as twister pairs. Goes through a bulkhead connector the interior. Those wire join the rear compartment wiring harness that has the tail light, fuel pump…

The rear wheel speed wires (twister pair) pass through to a harness on the rear axle. At the connector we swap from normal wire (twisted pair) to a tougher encapsulation wire that goes the wheel speed sensors.

The OE style encapsulation wiring is hard to find and I had to purchase 1000 feet of it to get some. Nice stuff.

I’ll get a photo soon

Mark


Sent from my iPhone using Tapatalk

[Blown353]

Originally Posted by Stielow

The rear brake lines run down the sides outside the frame rail.

The wiring comes off the ABS module as twister pairs. Goes through a bulkhead connector the interior. Those wire join the rear compartment wiring harness that has the tail light, fuel pump…

The rear wheel speed wires (twister pair) pass through to a harness on the rear axle. At the connector we swap from normal wire (twisted pair) to a tougher encapsulation wire that goes the wheel speed sensors.

The OE style encapsulation wiring is hard to find and I had to purchase 1000 feet of it to get some. Nice stuff.

I’ll get a photo soon

Mark


Sent from my iPhone using Tapatalk

So you're dropping it at the sides near the hubs like a late model and then running a flexline right to the calipers and the wheel speed sensor wires right to the hub... thanks!

Makes more sense than running everything to the top of the center section and then down along the axle tubes like the 50 year old OEM layout-- especially when I would have to snake the lines and wires over watts link brackets, sway bar brackets, and then worry about maintaining adequate clearance between the hard lines and speed sensor wires to the tailpipes at full suspension compression. Dropping them at the sides keeps them out of the way of all of the rear end brackets and also the hot exhaust.