A while ago I was down in FL helping my father-in-law swap his '70 to rear disc as well as drop the car and so forth. Both of us are new at this, so please bear with me.

He ordered a "complete" kit so we assumed it would be OK to cut the line running from the front to rear. Apparnetly that line was NOT in the kit so he had to buy a replacement from Year One. Here is the problem.....

The replacement does not have a T junction attached to it like the stock line had. Its just a male fitting. The two stainless lines running to the rear brakes are also male. Since I am 800 miles away, I have no idea what size fitting is on the brake kit. I also have no idea where to buy a 3 way female fitting that is acceptable. I figured Jegs was a good start, but like I said before, I have no idea what size fitting it is.

Any help would be appreciated.

Scott :beers:

Inline tube has all that stuff, so does classic tube but never bought from them.
inlinetube.com
classictube.com

NAPA auto parts has an assortment of tee fittings on hand at all times. :)

I'm not sure I understand where you need the tee though... the only tee needed on the rear line is at the axle, and that should be part of the rear brake-hose on a '70.

The rear line from the master-cylinder to the axle is 1/4"
The lines after the tee, to the rear calipers are 3/16"

That should be a flexible (rubber) line with a distribution block that bolts to the rear axle housing shouldn't it?:confused:

That should be a flexible (rubber) line with a distribution block that bolts to the rear axle housing shouldn't it?:confused:Earlier cars had a male end on the axle end of the hose, and a tee was needed there, but I believe 69 and later all had a dual female outlet hose end. If he needs a tee, it's because he has the earlier style hose and bracket on his car... it's not too uncommon, I have a '68 hose on my 69 because I used a '68 12-bolt housing and only had the 68 style bracket for 12-bolt.

Yeah, we didnt understand why it did not have the block attached to the line running to the rear. The stock one did, but the one he bought a week ago, did not. Its just a male end (very strange).

How about this.... where could I get (and what is the part number for) the CORRECT line that goes back to the rear axle? Then we woudlnt have to play this game with finding an oddball T.

If thats not a possibility, I guess we are to look for a 3 way female T that is 1/4" thead? That surely seems to small.

Go to your local parts store and get the correct hose. The one you have is for an earlier car... I know NAPA carries the correct one for '70, but I don't know the part number.

I don't recall the sizes of the female threads needed for that style tee, but the line sizes are 1/4" in and two 3/16" lines out... otherwise, check with one of the vendors such as in-line tube, I'm sure they have what you need. If Year One sent you the wrong hose, it probably won't fit the bracket on the top of the axle either.

Thanks all for the quick response. I will forward this to him.

Scott

You might want to check out these two threads. Original 70 front disc cars (at least every one I've seen) had a hold-off valve on the rear brakes that was mounted above the rear end on the body of the car (main line from the front feeds into this valve). I'm wondering if that is the block you are missing...
http://www.chevelles.com/forums/showthread.php?t=160546 http://www.chevelles.com/forums/showthread.php?t=28132

I have some photos at home of what the valve looks like. I was thumbing through one of the restoration part catalogs this past weekend and saw that they had repro for sale.

I found a pic online. Go to the link below and scroll down to the 67-70 Disc Brake Hold Off Valve section. There are photos of what the valve looks like...

http://www.inlinetube.com/pro_valves.htm