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Old 06-05-2003, 07:50 AM   #1 (permalink)
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Anyone using a Disc for a tranny brake?

I have seen this conversion on a couple of vehicles that don't normally have tranny brakes. Got me thinking.

Has anyone built on yet? If so what parts did you use?
I figure I could find a car that has rear discs with the cable attachment and just buy one rotor and one caliper.

TIA
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Old 06-05-2003, 09:05 AM   #2 (permalink)
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JL did, theres a post a few weeks ago about it.
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Old 06-05-2003, 10:21 AM   #3 (permalink)
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Yep...

Wilwood 4 piston caliper, hand hydraulic pump, solid rotor - it holds - anywhere. Specially with the new axles...

Pete, e mail me - we need to talk spring over, I finally have time to chat...
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Old 06-05-2003, 02:12 PM   #4 (permalink)
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Quote:

JL did, theres a post a few weeks ago about it.

grr...searched, but only found references to putting a disc on an np205

Quote:
Originally posted by HandBuilt
Yep...

Wilwood 4 piston caliper, hand hydraulic pump, solid rotor - it holds - anywhere. Specially with the new axles...

Pete, e mail me - we need to talk spring over, I finally have time to chat...
Hadn't thought about going hydraulic. I was looking at a subaru front set up. They have the parking brake on the front caliper.

I am thinking about coils now. I think I have about maxed out the leafs and dont think I want to go the revolver route. If I can work the upper links around the engine without having to jack the vehicle up a foot to gain clearance I am going to go four link. Trick will be designing it so that its still streetable.
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Old 06-05-2003, 06:38 PM   #5 (permalink)
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Quote:
Originally posted by aloharover

I am thinking about coils now. I think I have about maxed out the leafs and dont think I want to go the revolver route. If I can work the upper links around the engine without having to jack the vehicle up a foot to gain clearance I am going to go four link. Trick will be designing it so that its still streetable.
Pete

Pete, dude...

If you're not using longer front springs, you are nowhere near maxing out leaves. Properly designed leaf spring suspensions can work very well... No revolvers needed.

Balanced articulation is where it's at, with those short front springs it's hard to get balanced flex.
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Old 06-14-2003, 02:04 PM   #6 (permalink)
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Pete, I did it to my hybrid, LT230 transfer box using Alfa 164 rear calliper, as gearbox is auto I used a clutch master cylinder with shortened pedal to 'set' and adjust the pads then cable to the handbrake lever. Calliper mount and disc home grown!



Any help?

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Old 06-14-2003, 02:35 PM   #7 (permalink)
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While we are on the subject, I have been contemplating putting an LT95 park brake on an Lt230. Anyone done this? Im sure it isn't too difficult, but it might just be a bolt on as well.

-Jeff
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Old 06-14-2003, 06:39 PM   #8 (permalink)
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I just have to ask why are you guy's doing this conversion? I can lock up all 4 42's with my drum break (when it's adjusted correctly).

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Old 06-14-2003, 06:46 PM   #9 (permalink)
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Not to mention the fact that the disc will be much more likely to be damage whilst rockcrawling than the beefy drum brake.

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Old 06-14-2003, 07:12 PM   #10 (permalink)
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Your a New Mexican now Billy...No more "whilst" talk okay!

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Old 06-14-2003, 07:28 PM   #11 (permalink)
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Touche'.....ooops, I mean fawk you man!!!

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Old 06-14-2003, 08:48 PM   #12 (permalink)
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You guys sure there's room enough in that state for the both of yas...???

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Old 06-15-2003, 10:24 AM   #13 (permalink)
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I guess you don't have so many problems when rock crawling, but mud gets in the drum and doesn't come out too easily. Wears the pads out really quickly, looses the adjustment, sometimes after getting wet and muddy it dries on so you have to force it off next time you use it. Pain in the arse basically!

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Old 06-15-2003, 05:42 PM   #14 (permalink)
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Ahhhh, more reasons to hate mud!!



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Old 06-15-2003, 06:57 PM   #15 (permalink)
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Why disc versus drum

I have a dana 18 on the back of an SM465.
The jeep was set up with a cable and floor pedal.
The arm enters the drum backing plate on the left side, versus right side on the rover.
I have tried a couple different cable set ups with no joy.
I tried using a mechanical linkage, but it didnt work.
The problem with the cable is getting enough travel with the rover hand lever. If I can pull the cable tight the thing will hold on very steep hills.

I thought about redrilling the backing plate mounting holes and rotating the thing so the lever is in a similar location as the Rover. But I am running dual exhaust. The right side just barely fits between the frame rail and drum, no room for linkages.

So I have started thinking about putting a disc on the thing. Making a plate that goes between the drive shaft and the xfer output flange and then drill it for the rotor bolt pattern. Or if I am lucky just drill the disc for the flange pattern
Not much rock crawling on Oahu or here in the Cascades. And dont expect much in Virginia Beach
Also not sure how much I believe that a drum can with stand slamming into a rock anymore then the disc does. But I am pretty sure a properly designed skid plate will work.

So thats my current thought process on it. If I can get the exsisiting drum to work, great. I would prefer not spending any $$$. But if I have to go disc I will.

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