Brakes: Master cylinder rod extension

[Warren Webb]

On my 62 Champ (under floor master cylinder) I am converting to a dual master. There are 2 sets of holes in the frame that could hold the master cylinder/bracket assembly. On is about 1/2" forward than the other but raises the master to butt up against the floor while the other is back & lower which is better for access. My problem though is with the rearmost location the pedal actuating rod is too short. The thread in the clevis is 7/16ths x 20. I found this on E-bay which would work but no dimensions of thread width & pitch are given.

http://www.ebay.com/itm/Blue-Ox-BRK2502-Patriot-Brake-Extension-Rod-Camper-Trailer-RV-/271336641721?pt=Motors_RV_Trailer_Camper_Parts_Accessories&hash=item3f2cec94b9&vxp=mtr

Has anyone else run into this & what was your remedy?

[Ron Dame]

It's been several years and I have suspended pedals, but I found an adjustable push rod at NAPA. I expect thay can be found at most FLAPS, I think mine was from the Help! product line of Dorman.

[acolds]

I used one of these when installing dual master cylinder on my Clipper and cut off grade 8 bolt to get correct length with jam nut to hold adjustment http://www.mcmaster.com/#rod-ends/=put9pk

[brian6373]

http://forum.studebakerdriversclub.c...r-Cylinder-Rod This was the solution for a 63 T-cab dual master cyl. conversion. I hope this helps.

[woodysrods]

7/16"x 20 has only one thread pitch and thread space.
This is not metric here!
Good Roads
Brian

[Warren Webb]

http://forum.studebakerdriversclub.c...r-Cylinder-Rod This was the solution for a 63 T-cab dual master cyl. conversion. I hope this helps.

Yes and no. Your 63 Champ has the suspended or swing pedals while mine still has the old fashioned thru the floor pedal that uses a clevis at the pivot. I'll look at some of these that are listed but the 7/16ths x 20 thread is not that common. I'll measure the pin end of the clevis to see what I need there. I've spent ALOT of money on this & I'm about ready to throw in the towel & put the original single master back on. I bought a rebuild kit for it just in case.

[Neal in NM]

You could try a coupling nut.

http://www.mcmaster.com/#extension-nuts/=pv89kh

Neal

[Warren Webb]

You could try a coupling nut.

http://www.mcmaster.com/#extension-nuts/=pv89kh

Neal

I had ordered that this morning (part # 90977A190) I'll try it with a wheel stud from a late 60's Mopar that has the same thread. (cut it down & run it through a die a few times)

[Warren Webb]

The coupling nut worked. I did have to cut about 1/2" off it. Didn't want to cut too much as I wanted to make sure there was plenty there for strength.