Since I only have dreamers and knuckleheads showing interest in the second RRC I have I'm starting to look at all the parts I want. One of the big ones is the non ABS system the donor truck has vs my ABS system. My system does actually work. But now the accumulator has started to leak causing the pump to come on more frequently. I recently have my ABS light come on. I've checked and tapped all the sensors. I'm kind of over it. The simpler system seems more appealing to me.
I was planning on swapping the masters obviously. And hard lines under the hood from the donor truck. Any thing else that I should gpull to make this swap easier? Or are more parts required to swap than that? I'm wondering if the boosters are the same too.

 

There shouldn't be a booster on the ABS RRC, as far as I know. My buddy's 1990 RRC used the ABS pump as the booster.

 

Duh. You're right.

 

Yah i just checked mine ABS pump

 

Just an update here. Been working in this swap this week. It was alot more work than I initially thought it would be. I wanted this install to look factory with no cut lines at all. So I wound up taking all my lines out and swapping in the ones from the donor truck.

The only lines that were the same were the ones in the middle of the truck. The ABS system uses two feed lines that feed a double input T that goes to the rear calipers. I'm assuming the module has a built in pressure reducing valve to the rear system.
The conventional system uses a single line to the rear fed from an actual reducing valve. Split T at the rear axle.

By far the hardest part of this was getting the hard lines in and out of the trucks with out damaging them. The lines under the hood were the worst. But now the standard master cylinder looks totally factory. I took the time to swap in the little white clips that hold them to the fire wall. I'll post some pics up later.

 

Wow my d1 was way easy, bought a t for back rear, abandoned a line going to rear, pulled pump, hooked line to rear to the proportion valve, hooked pass side hard line to valve and made a drivers line that went to valve, bleed and done easy peasy

 

Tom RRC ABS is alot different from a Disco. The master cylinder and module are one piece. Before:


After:

 

so you pulled the ABS and just installed a booster from a D1 or d2? no issues? what did you do with the four lines go to the front calipers?

 

No I pulled the master and booster from my Non ABS Range Rover parts truck. I pulled all the lines from that same truck too so it looks and functions like factory. Still has the two lines per side in the front. Works great.

 

well i dont have a non-ABS parts truck . so like 87-89 some where in there