Brake caliper confusion

[POPO1984]

So I ordered a inline tube stainless brake hose kit long before I bought my calipers. I ordered a hose kit for a 72 with disk brakes. I later bought 73 hd calipers I think. Anyhow the banjo bolts inline sent me did not fit they were way to big for the calipers I had. They sent me another set of banjo bolts which they said would fit. Don't know the size. Problem is the driver side banjo bolt fits but the passenger side goes straight in barely touching the treads and the first set is still to big for the bolt hole. They are remanufactured calipers. Is it possible that the hole was stripped and it was retreaded when it was remanufactured. I think the 73 calipers use a 7/16-20 banjo bolt. I have no clue what to do guys.
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[POPO1984]

Sorry for pics doing this from my ipad
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[POPO1984]

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[POPO1984]

Last pic
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[luvbowties]

Originally Posted by POPO1984

So I ordered a inline tube stainless brake hose kit long before I bought my calipers. I ordered a hose kit for a 72 with disk brakes. I later bought 73 hd calipers I think. Anyhow the banjo bolts inline sent me did not fit they were way to big for the calipers I had. They sent me another set of banjo bolts which they said would fit. Don't know the size. Problem is the driver side banjo bolt fits but the passenger side goes straight in barely touching the treads and the first set is still to big for the bolt hole. They are remanufactured calipers. Is it possible that the hole was stripped and it was retreaded when it was remanufactured. I think the 73 calipers use a 7/16-20 banjo bolt. I have no clue what to do guys.
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Dunno if this helps, but iirc, the passenger side caliper on the '72 takes a smaller hose than the driver side. Strange, I agree, but I recall running into this several years back.
HTH,
Sam

[POPO1984]

ill look into that as of now i have no clue what to do except try a few other size banjo bolts to see what fits.

[lolife99]

The later c10 calipers (80-87) take a 10mm metric banjo bolt.
Still fit the same rotor.
Being a reman caliper, I bet you have one of each.
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[TBONE1964]

I agree with Keith.

If you have the same hoses, the same bolts and the same washers then they should fit both sides the same.

Easy to fix. Just take back the calipers and exchange them for the correct ones. I know I say easy should be easy.

[First c10]

Not sure about bolt threads but are the calipers on the wrong sides? my bleeders are on top. In the picture it looks to be facing down to the ground. If you were to flip calipers side to side the bleeder will be on top. Would that help with routing?

[POPO1984]

I bought these calipers probably a year ago. I don't think the parts store is gonna swap them out. They could be mounted upside down ill have to check that out.
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[kwmech]

73 should be 7/16, but the banjo should fit either the 7/16 or the 10mm. 7/16 being a few thou larger. Yeah, good call on them being upside down. You may also have 2 right calipers or 2 left sides

[TBONE1964]

Originally Posted by POPO1984

I bought these calipers probably a year ago. I don't think the parts store is gonna swap them out. They could be mounted upside down ill have to check that out.
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That would be OK, you just have to tip the truck upside down to bleed the front brakes Good call

[POPO1984]

Yeah that makes since. I'll swap them around. I guess I need to find out what size bolts I have and go from there.
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[70CHEVYBB]

i left the banjo bolt out on mine. I drilled out the hole in the caliper and tapped it 1/4 npt. installed a 1/4 to 1/8th reducer(brass) then I used a 45 degree #3an fitting to hook up my brake hose. The 45 points the hose straight forward.

[SIXT8LOU]

Originally Posted by lolife99

The later c10 calipers (80-87) take a 10mm metric banjo bolt.
Still fit the same rotor.
Being a reman caliper, I bet you have one of each.
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hello,,,!! i just picked up a set of remanfacterd calipers for my C10 71 front/rotor disks,,and i have the same problem,,,banjo bolts too big...so your saying my new calipers ( i presume 80-87) will fit my 71-72 lowered spindles? i was just bout ready to return them..figureing parts house gave me the wrong calipers..thanks!!!!

[lolife99]

Originally Posted by SIXT8LOU

hello,,,!! i just picked up a set of remanfacterd calipers for my C10 71 front/rotor disks,,and i have the same problem,,,banjo bolts too big...so your saying my new calipers ( i presume 80-87) will fit my 71-72 lowered spindles? i was just bout ready to return them..figureing parts house gave me the wrong calipers..thanks!!!!

Yes. Just get the correct banjo bolt.
The 71-72 rotors are the 1.25" width version.
The 71-72 standard and drop spindles only use a 1.25" width rotor.
Spinde, rotor width and caliper ALL have to match.
The only caliper that won't fit is the 81-87 light duty version for 1" wide rotors.
Make sure you purchase the 71-87 HD version.
But the banjo bolt size will depend on what year core the caliper manufacturer used.

[SIXT8LOU]

Originally Posted by lolife99

Yes. Just get the correct banjo bolt.
The 71-72 rotors are the 1.25" width version.
The 71-72 standard and drop spindles only use a 1.25" width rotor.
Spinde, rotor width and caliper ALL have to match.
The only caliper that won't fit is the 81-87 light duty version for 1" wide rotors.
Make sure you purchase the 71-87 HD version.
But the banjo bolt size will depend on what year core the caliper manufacturer used.

thanks Keith your great! everything matches i have HD version. one more question,,,,i still have drag link from my 68...do i need to change it to 71-72? i picked all parts from donor truck but i didnt grab the drag link!

[Andy4639]

When I bought new S/S hoses from off E bay
Hoses unlimited. They said 71 brakes are a 1 year design.
72 up will fit 73 up until the change year.
I had replaced my calipers several years before and remembered this info after calling them about the hoses not fitting. So I had to send the 71 hoses back and he sent me the 72 up hoses. No problems after that and it was my fault but he took care of it for free no extra charge.
Info:
72 up calipers are a lot easier to come by and will fit up to the 80 models.

[SIXT8LOU]

Originally Posted by SIXT8LOU

thanks Keith your great! everything matches i have HD version. one more question,,,,i still have drag link from my 68...do i need to change it to 71-72? i picked all parts from donor truck but i didnt grab the drag link!

Any help out there on that last question? do i need a 71-72 drag link for my set up? thanks for the help!

[lolife99]

Originally Posted by SIXT8LOU

Any help out there on that last question? do i need a 71-72 drag link for my set up? thanks for the help!

Getting the 71-72 drag link will make your life easy.
Direct bolt on with 71-72 tie rods.
DONE.

You CAN use your 68 centerlink.
You will have to:
1) move your 68 OUTER tie rods to the INNER location.

2) purchase a set of Converison tie rod adapters.
(these are $50-$60 and many companies sell these)
They are 5/8" on one end and 11/16" on the other.

3) then bolt on a 71-72 OUTER tie rod to connect to your spindle.

It's POSSIBLE to use your 68 drag link,... it's just more complicated.
I found this out when I put 71-72 McGaughy's spindles on my 69 swb.

It would have been SO MUCH EASIER to use 63-70 conversion spindles.
I learned the hard way,...

[SIXT8LOU]

Originally Posted by lolife99

Getting the 71-72 drag link will make your life easy.
Direct bolt on with 71-72 tie rods.
DONE.

You CAN use your 68 centerlink.
You will have to:
1) move your 68 OUTER tie rods to the INNER location.

2) purchase a set of Converison tie rod adapters.
(these are $50-$60 and many companies sell these)
They are 5/8" on one end and 11/16" on the other.

3) then bolt on a 71-72 OUTER tie rod to connect to your spindle.

It's POSSIBLE to use your 68 drag link,... it's just more complicated.
I found this out when I put 71-72 McGaughy's spindles on my 69 swb.

It would have been SO MUCH EASIER to use 63-70 conversion spindles.
I learned the hard way,...

Yep! iam learning the hard way too...i shuda done the same...i just figured that 71-72 was the way to go...i will pick up a 71-72 from a buddy, i like easy and done!!...by the way...the banjo bolts i found to fit the calipers were 11mm.? does that mean anything? thanks for all your help!! awesome!

[lolife99]

11mm thread size?
Or 11mm wrench size?

[SIXT8LOU]

Originally Posted by lolife99

11mm thread size?
Or 11mm wrench size?

the guy napa said 11mm thread..but i think bolts were just in the wrong tray...i never heard of 11mm thread...i was at brothers show yesterday and i asked around,,,nobody ever heard of 11mm thread??? what do think?

[lolife99]

http://www.oreillyauto.com/site/c/se...&make=Chevrole
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