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Old 03-24-2014, 12:26 PM   #1
sparks427
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front caliper banjo bolt size??

Ok, so I've beat the search button to death and can't find what I'm looking for, as the title says, I want to know what the banjo bolt size is on the front calipers. thanks!!
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Old 03-24-2014, 12:30 PM   #2
tony58
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Re: front caliper banjo bolt size??

Either 10mm-1.5 or 7/16"-20, depends on which caliper you have.
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Old 03-24-2014, 12:39 PM   #3
sparks427
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Re: front caliper banjo bolt size??

Well it would help if I specified it to be a 71 c10... Might help haha
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Old 03-09-2020, 01:32 PM   #4
EagleChief
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Re: front caliper banjo bolt size??

I'm going to revive a SUPER old thread. Mainly because I can't find what I'm looking for in the search function... Anyone figure out the length of the banjo bolts?

I see that it's either a 10mm-1.5 or 7/16-20, but haven't seen what length. Redoing my brakes and thought I'd put in new banjo bolts while I'm there. I've been looking at the local parts stores online and they all say 10mm-1.25... all metric. I don't want to try one of those and end up stripping some threads.
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Old 03-09-2020, 05:31 PM   #5
ray_mcavoy
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Re: front caliper banjo bolt size??

7/16"-20 x 7/8" is the size commonly used on many GM applications up to about 1977 or 1978.

Many Chrysler applications used banjo bolts with the same 7/16"-20 threads but in slightly longer lengths of 1" or 1-1/16". I've had to use these on some GM vehicles where the hose end fittings were too thick for the typical 7/8" long bolts to pass through and still have enough thread to go into the calipers.

The metric 10mm bolts started sometime around 1978 but might be found on earlier trucks if the calipers have ever been swapped.
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Old 03-09-2020, 07:59 PM   #6
AussieinNC
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Re: front caliper banjo bolt size??

Assuming you have factory calipers and factory style hoses...LMC carry these under
31-0377
BOLT-HOSE TO CALIPER
CHEVY GMC 71-72
Qty needed 2
Price each $2.95
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Old 03-10-2020, 10:57 AM   #7
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Re: front caliper banjo bolt size??

Thanks for the replies, guys! Going to try and pick some up today.

I did see the bolts on LMC, but they didn't give specifics as to size (granted, that was the main reason I looked on there).
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