TRAXION

I purchased the 28A190 kit from Summit a couple months ago and I just got around to installing it. I have 4-wheel discs on my 1990 IROC-Z. I do NOT have 1LE brakes. The back lines fit fine. But, the front lines will NOT fit the caliper. The stock front IROC calipers have a recessed part where the brake line attaches. The earl's end is too big to fit into this recessed section. I searched the board and others had no problems installing them. I grabbed an extra set of calipers I had laying around and they are identical to my stock calipers. The earl's lines don't fit them either. Here are some HUGE pics:

http://www.celligent.com/tim/iroc/br...nt_nofit_1.jpg
http://www.celligent.com/tim/iroc/br...nt_nofit_2.jpg
http://www.celligent.com/tim/iroc/br...nt_nofit_3.jpg

WTF?

I had to put my stock rubber hose back on. Anybody have any ideas? Any Earl's users out there have any info?

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EDIT #1:
This kit will fit the stock iron front calipers as long as you slightly modify the hose ends. This is very easy and takes less than 15 minutes. Details are later in this post but a picture is worth a thousand words:
http://www.celligent.com/tim/iroc/br..._nofit_fix.jpg

EDIT #2:
MDFormula350 discovered the Earl's Part Number for 89-92 non-1LE cars with the aluminum PBR rear calipers. The PN is 28A300.
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Tim

Scott_92RS

Looks like it's either a job for the postman, or for your dremel Dont you hate it when stuff that is supposed to fit without a problem, doesnt fit? If Summit wont take them back, I'm sure a you can grind enough off of that banjo fitting, or even the caliper, to make it fit.

TRAXION

Yea. If I want to I could modify the actual hose ends. I think that using a bench-top wheel grinder would be the easiest and best bet. All I would have to do is to knock off the 4 corners of the hose end. BTW - it's not like it's even close. I would have to knock of a good amount off each corner. The stock hose ends have the corners already removed. Easy to do but I wanted to see what other Earl's 28A190 (5-piece hose kit) owners have done.

Tim

DJP87Z28

You bought the wrong brake line kit ftom Summit. there are two part numbers for four wheel disc brakes and I don't have the number now.

ptacam

You have the same lines they are for the 1LE brakes. I have them on my car. Thats why they do not fit.
I will be Selling a 1LE brake set up if any one is interested. This will include every bolt and washer needed for the swap. I know part#s and everything I have them on my car they are the ultimate you can put under 16" wheels. Price for the brakes will be 700dls. These are not new they were taken off a rear ended police car. I will have a pic when I gather all the parts to sell. It will include new bearings and rotors and brake lines and pads. The only parts that will be used will the spindles and brackets.
See Ya Pete

TRAXION

UPDATE - my previous post (included below) was in error. For the PN for iron front calipers and PBR aluminum rear calipers it is Earl's PN 28A300.

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I think that basically Earl's does NOT manufacture a kit for the '89-'92s that have the single piston iron front caliper and the PBR aluminum rear calipers. They make kits for the '88 and earlier 4-wheel disks (iron rear calipers). They also make a kit for front disks with rear drums. Then they make a kit that is labeled as 4-wheel disks up till 1992 but that kit only fits the 1LEs on the front. HOWEVER, that kit is the only kit that has the rear brake lines for the '89-'92s. Earl's needs to step up and make another part number that has the 3 rear lines from the 1LE kit and the front lines from the other kits.

Also note that 99Hawk120 is wrong in this post:
https://www.thirdgen.org/techbb2/sho...ghlight=28a190

There are a couple of other posts out there too that say that the 28A190 fits standard 4-wheel disks.

Tim
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Momar

Yes, I just used a bench mounted wheel grinder like you mentioned. It worked fine. The wheel I had wasnt mad for alum so I cleaned it out with a wire brush beteween corners. Also, the hose end gets real hot. Find something to hold it with. I learned that the hard way.

Ben

Breadfan

I would put some tape over the bango fitting in the hose. that way no metal chips are put into the brake system

TRAXION

Here's what it takes to make the 28A190 fit on the standard iron calipers. Basically you just have to knock off the four corners. It is NOT necessary to remove a great deal of material. You only need to remove a little off of each corner.

http://www.celligent.com/tim/iroc/br..._nofit_fix.jpg

Tim

Momar

Yup, that looks like what I did.

Ben

vwdave

I had the same problem. I went and dremeled the caliper's lip off.

TRAXION

UPDATE: MDFormula350 found an Earl's PN for 4-wheel disk from 89-92 WITHOUT 1LE.

https://www.thirdgen.org/techbb2/sho...hreadid=173511

PN 28A300

Tim

Steve89GTA

So, the thread and bolt size are the same between the 1LE kit and the iron ones? Can someone confirm.
It's great to know that if I order the front-iron ones now, that the lines will work with the ILE's later on when I do the swap...

Momar

I would think they would work. I have the Earls for 1LE's and modified them to work(ground off the corners) with the non 1LE calipers.

Ben

BretD 88GTA

Bolt size/diameter is the same. The only difference is 1LE calipers use a different thread pitch. IIRC, stock/standard thread pitch is 1.0 and 1LE thread pitch is 1.5 (same as for a Corvette). When you do the 1LE swap you'll need to buy new bolts from a dealership.

Momar

Yeah, so basically your lines will work, you just have to get the right bolts for the caliper you are using.

Ben