Very ordinary Brakes?

[Lucas Bree]

Hey guys thanks for your help in advance. I have a 1993 TB42E auto 4.6diffs with 35s patrol wagon with twin piston front callipers, the problem I have is holding the brake pedal down hard stationary in low range 1st gear just above idle it drives off brakes won’t hold it, going rock crawling down a hill at idle I have to keep knocking it into neutral they just won’t hold. Braking on road normal driving isn’t too bad considering tyre size etc. I have rebuilt all the callipers machines rotors and new softer compound pads and replaced the vacuum lines adding a small tank inline for vaccum reserve. Really annoying me any suggestions would be appreciated.

[GQtdauto]

If you've rebuilt the brakes have you replaced the brake lines to the calipers with an inferior line that's expanding under pressure ? Have heard of this happening once .
My 94 is pretty much stock as far as brakes go and with 33s on I was able to pull up from about 90 to a dead stop when a car decided to do a u turn unexpectedly in fairly short order .

[Lucas Bree]

Thanks I’ll replace them over the next week and see if it helps. 👍

[PeeBee]

I upgraded my nissan rubber hoses all round to the teflon/ss braid ones and made a massive difference. Then later changed the pads to the softer ones - better again. I only have single piston calipers also.

[mudski]

Yeah steel braided hoses make a big difference.

[Lucas Bree]

What did you pay for the Teflon lines and where from? Did you do the long diff to chassis and short calliper to diff?

[PeeBee]

I contacted Safebrake, one of the vendor sponsors on the forum. It's been a while but they supplied all hoses to swap over so possibly 6 in total. No idea of the cost, but the service was great and swift delivery. Had a workshop swap them over and again from memory it cost 2 hrs labour plus brake fluid. PM Safebrake and get a quote.
I have a 3" lift and they handled that with ease.

[Lucas Bree]

I’ve got my hands on a GU booster and master going to give that a go before the ss line I’ll let you know if it’s any better.

[mudski]

What did you pay for the Teflon lines and where from? Did you do the long diff to chassis and short calliper to diff?

From memory it was around the $400 mark for all hoses. Four wheels and the two chassis to diff hoses. No point in just doing some of them. Marks Adaptors I got them from I think. Twas a while ago.

[Hodge]

So, just by upgrading to these Teflon braids , it will improve braking ?
Brakes are done my next service . Pads , fluid and thinking of getting these upgrades.

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