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#1 |
Registered User
Join Date: Dec 2005
Location: Kalifornia
Posts: 334
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Truck rallys and disc brakes problems
I know there are several posts about this subject, but here we go again. I have a set of 15x8 truck rallys with 4 inch backspacing. They will not mount over the original brake calipers. Truck is original and original ride height with no modifications. It's been stated this type of wheel is compatible with disc brakes as long as they aren't larger aftermarket calipers. I have a 72 C10 with disc front/drum rear. What gives? I haven't tried them on the rear drums, but if they won't fit the front they are useless to me. Bought these at a swap meet and a lesson learned. Any thoughts? (other than I'm screwed) Thanks
One thing I notice is a slight inward taper of the rim toward the hub. Normal? |
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#2 | |
Senior Member
![]() Join Date: Apr 2013
Location: Houston,Tx
Posts: 777
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Re: Truck rallys and disc brakes problems
Quote:
__________________
1966 C10 Mary 1972 C10 Cheyenne "Betty" https://67-72chevytrucks.com/vboard/...d.php?t=847364 1976 C35 Sierra Grande "Mr. Harvey" 1979 C10 Silverado "The BIG TEN" https://67-72chevytrucks.com/vboard/...d.php?t=841339 1982 C10 Silverado "Lucy" C10 Club Texas -HMIC |
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#3 |
Born Psycho
![]() Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,864
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are you sure they are truck rallys, factory truck rallys weren't available until a few years after disc brakes became standard equipment on all GM light duty trucks. post some pics so we can see where the problem is.
__________________
jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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#4 |
Registered User
Join Date: Dec 2005
Location: Kalifornia
Posts: 334
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Re: Truck rallys and disc brakes problems
Thanks. I'll send pics asap. Won't go through it says a security token missing. That's a new one.
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#5 |
Senior Member
![]() Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,662
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Re: Truck rallys and disc brakes problems
I have encountered that and fixed it by reducing the picture size to 2000 pixels wide and add the pictures one at a time. You can still compose a post with 5 pictures, but just upload them one at a time.
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#6 |
Registered User
Join Date: Dec 2005
Location: Kalifornia
Posts: 334
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Re: Truck rallys and disc brakes problems
Thanks DJ. It worked.
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#7 |
Senior Member
![]() Join Date: Jun 2022
Location: San Ramon,CA
Posts: 484
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Re: Truck rallys and disc brakes problems
I have no insights to offer, but maybe slap some painter's tape on the inside of the rim to show you where it's rubbing(without marking the metal). Maybe a blobby weld, or something you can clean up.
__________________
1970 C10 Custom longbed 350/350 |
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