Conversion to vented front brakes

[ghoregon]

Rimmer Bros is doing a 17% off Black Friday promotion so I'm thinking about buying the parts needed to switch my '86 Ex MoD 90 over to vented discs. Are these the right calipers, rotors, & pads for my truck? I don't want to spend a bunch of money and accidentally order the wrong bits. Are there any other parts needed for the conversion...brake lines maybe? I've already got new OEM bearings and seals to do those at the same time.

Thanks,
Greg

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[jymmiejamz]

Have you checked with the US suppliers? I don't think that is much cheaper than what I paid for callipers from Rovers North. Below are the guys I like to deal with.

Zack Griswald @ Rovers North
Erik Torno @ Lucky 8
Eric Riston @ Atlantic British

 

[Napalm00]

Not sure on the reasoning for doing this conversion. The newer calipers and vented rotors give absolutely zero better performance than the stock solid rotors. The only time it's ever better is if you doing very heavy towing or constant on and off braking at high speed.

I think you'd be better off saving your money and converting your rear drums to discs!

 

[Red90]

A lot of the early 90s have calipers with the smaller pistons so it does make a difference if that is the case. If you are getting new calipers and rotors you might as well do vented.

 

[ghoregon]

Not sure on the reasoning for doing this conversion. The newer calipers and vented rotors give absolutely zero better performance than the stock solid rotors. The only time it's ever better is if you doing very heavy towing or constant on and off braking at high speed.

I think you'd be better off saving your money and converting your rear drums to discs!

It is time for new pads and I have no idea if the calipers have ever been replaced. I figured I would renew it all with "modern" stuff while I am in there. Yes, rear discs are on the wish list too...maybe next year's Black Friday sale

Thanks.

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[Napalm00]

Okay I could see that. Just keep in mind that these remanufactured calipers are probably lower quality than your Originals if the originals are in good shape.

There is a change over for the hold down bolts from bracket to caliper. Early ones have coarse thread late ones have fine thread if I remember correctly

 

[ghoregon]

Okay I could see that. Just keep in mind that these remanufactured calipers are probably lower quality than your Originals if the originals are in good shape.

There is a change over for the hold down bolts from bracket to caliper. Early ones have coarse thread late ones have fine thread if I remember correctly

Great info...thanks. I will get new bolts too.

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[ezzzzzzz]

I did this about a year ago with Rimmer parts on the 97 D1 I'm now parting out. With new calipers out back and green EBC pads this thing stops noticeable better. Now, that could be merely due to replacing the old calipers and better pads but I feel it is a worthwhile upgrade.

 

[rovingryan]

I just did this on my 84 110 with 96 discovery front axle. The new vented calipers have a significantly larger brake pad although as I recall the pistons micd out the same. Braking is dramatically improved to the point I can actually lock all four now and was not able to before. Now if only I could get the last bubble out.......not sure where it is hiding just yet but it takes a double pump everytime to firm up the pedal.

 

[Red90]

A double pump is not air. It means pads or shoes are backing off. If you have drums, make sure they are adjusted. Otherwise make sure all hub bearings are tight.

 

[rovingryan]

A double pump is not air. It means pads or shoes are backing off. If you have drums, make sure they are adjusted. Otherwise make sure all hub bearings are tight.

Rear was converted to stock 110disk setup a few years ago. Hub bearings are not loose. I have verified. Even stationary a double pump pumps it up everytime.

 

[Red90]

Like I say. It has nothing to do with air. The pads are backing off. Something is loose or out of round.