proportioning valve

[BPB]

I am installing a dual diaphram brake booster. I am also doing away with the rear proportioning valve. Should i use the zj 60/40, or the xj which I believe is 70/30. Keep in mind that I have those huge dana 60 brakes out back.

[CWLONGSHOT]

I would use the XJ valve.

 

CW

[Eagle]

The XJ valve is calibrated for smaller XJ drums in the rear. The ZJ is calibrated for rear disks. I think I'd go with the ZJ valve.

[BPB]

I think that I am going to go with the xj valve. I was told that disc brakes take less power then drums. Worst case I have to go and buy an adjustable proportioning valve, maybe I could use one from an f250 seeings how that's the truck my axles are off of.

[89eliminator]

summit has cheap adjustable prop valves. got one in my truck and it works great.

 

http://store.summitracing.com/partdetai ... toview=sku

[BPB]

If my xj valve doesn't work out right then I will probably use that method. Did you mount it under your hood? I also saw that they have one that would completely replace the unit below the master cylinder for about a hundred bucks. We'll have to wait and see. won't have the rear axle back till the end of the week.

[89eliminator]

yep, mine is under the hood.

[Bounty Hunter]

I would think the ZJ would flow more for the large capacity of calipers, you could use that with the 60. Which MC did you use?