6 lug brake rotor for front of 81 c10 - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-22-2010, 11:34 PM
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6 lug brake rotor for front of 81 c10

i need to know if anyone knows of a 6 lug front brake rotor that i can put on the front of a 81 c10 i changed the rear to a 6 lug 12 bolt and now i have to run a 5 lug in front and a 6 lug in rear

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Old 01-23-2010, 09:49 AM
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You may be able to check into the disk brake conversion kits for 67-70 chevy trucks.
Shane
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Old 01-26-2010, 11:16 AM
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Did you used to have a 10 bolt in the back? If you did why not just take the drums off that 10 bolt, with axles from a 2wd 12 bolt (5 lug).

Then you have 5 lug all around and you dont hafta get different wheels.
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Old 01-30-2010, 08:38 PM
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just some tech info in case you didnt know possibly:

there was never a stock 6 lug 2wd C or G 10 series truck(1/2 ton) in '64-'70

such a rotor is found only as aftermarket but uses stock caliper and spindle('71-up parts only)

if your rear axle you put under the 81 is a '70-up one then you can just put any '71-up 5 lug shafts in it and no other changes other than the drums,, use the shafts and drums on your 81 original axle.

the old 12 and 10 bolt truck axles were same spline

some more info:

the '64-69 axles were narrower than the '70-up ones by exactly 1.5"

and there were no 5 lug ones from factory.,

now, if its a 64-69 axle then you have to do something different from above.
what you need to convert a '64-69 axle over to 5 lug are:

all the stock '73-up 2.75" wide brakes and parts,
brake backing plates, from same width brakes truck.,( i just unbolt the entire plate with all the brakes still on it, real simple this way)
and axle shafts from any '71-up truck 2" or 2.75" brakes doesnt matter,
and bolt these onto the '64-69 axle housing tube ends,
this converts a 64-69 axle to 5 lug and to 70-up width, but now 5 lug
the brakes and plates can be from a 4x4 and are same as 4x2 ones, but the shafts will be from a 4x2..

this makes up the extra width exactly and is a direct bolt on "mod"

it works fine and ive done it before no problem.

base models have only 2" wide brakes(the lighter GVRW rated trucks)
the '64-69 already have this size brakes.

ppl like to argue that there was no axle width increase in '70 on the 12 bolt(C/K 1/2 ton) trucks, or that it was a different year., but no it IS 1970 when they did it, and also when they swapped to 5 lug on 2wd trucks.

you can convert/swap to basically anything with FACTORY parts,
except for to 6 lug on the front of a '71-up C or G-10

just some info to help you and/or anyone else out there.

swapping the shafts to 5 lug ones would be the best thing to do, unless you have extra money to burn, time to spare, or are just bored or like to wrench for the fun of it.


have fun

Last edited by fast68; 01-30-2010 at 09:05 PM.
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