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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2011 Posts: 2,951 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 2,951 | I definately want front disc brakes on my 1965 1/2ton stepside. But before I open my wallet, I gotta ask - Will I still be able to use the factory steel wheels after I convert to disc brakes? Is there enough room for the caliper? 
Last edited by Lugnutz; 06/13/2012 1:51 AM.
| | | | | Joined: Sep 2011 Posts: 1,453 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,453 | Not the o.e. wheels, got to get to '71 for disc brake wheels.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Sep 2011 Posts: 2,951 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 2,951 | Are the 1971 wheels 6 lug? I really want to stay with 6 lugs. Thanks. | | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | It depends on which disc brake kit you get and from what supplier. Some use a 12" rotor which will not clear the inside of a stock wheel. The 11" rotor kit should clear but I would check with the supplier. If they can't tell you they don't know anything about their product and I would stay away from them.
Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
| | | | | Joined: Sep 2011 Posts: 1,453 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,453 | Are the 1971 wheels 6 lug? I really want to stay with 6 lugs. Thanks. 1/2 ton 4wd are, 2wd 5 lug.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Sep 2011 Posts: 2,951 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 2,951 | Are the 1971 wheels 6 lug? I really want to stay with 6 lugs. Thanks. 1/2 ton 4wd are, 2wd 5 lug. Looks like I'll have to hunt some down then. It should be fun trying. | | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | Jay, I THINK the chev blazers used 6 lug for a long time. Not sure about the years.....just a thought. | | | | | Joined: Sep 2011 Posts: 2,951 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 2,951 | Jay, I THINK the chev blazers used 6 lug for a long time. Not sure about the years.....just a thought. It seems the main issue is backspacing. I have some nice mag rims with about 4" of backspacing and I believe they should be fine with disc brakes. However, I also like the steelies with wide whitewalls look too and am undecided as to which one to use. Anyone know how much backspacing is required for disc brakes? | | | | | Joined: Sep 2011 Posts: 1,453 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,453 | Jay, I THINK the chev blazers used 6 lug for a long time. Not sure about the years.....just a thought. The basic steel wheel was used from '71 - '87 on many K1 pick -up & thru '91 on K1 series blazer / jimmy & suburban. Remember, even if a rig has alloy wheels it would have have a steel spare!
Last edited by BC59; 06/15/2012 6:59 AM.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Sep 2011 Posts: 2,951 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 2,951 | After a good night of sleep, I realize that backspacing probably has nothing to do with fitment. I'm thinking that it's got more to do with the size of the rotor. | | |
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