Issues with 15x7 Torq Thrust 2 on a 1966 C10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tom66C10 · 06-16-2022, 09:23 PM

I have a 1966 C10 with disc brakes. I just bought 15x7 Torq Thrust 2 wheels and they hit the hub before seated all the way on the rotor. I had 15x7 truck ralleys on it before with 4" back spacing. These new wheels are 3 3/4.

How are you guys running these wheels? Using spacers? I hate to do that since that will move them out even further. Is there a rotor with less hub size? It appears I'm hitting hub, and not the end of the dust cap.

Thank you

Tom

**The Rocknrod** · 06-17-2022, 06:08 AM

I took backspace measurements first, then ordered the wheels with the backspace I needed.

Tom66C10 · 06-17-2022, 02:22 PM

Quote:

Originally Posted by The Rocknrod

I took backspace measurements first, then ordered the wheels with the backspace I needed.

This isn't backspacing related. The hub on rotor is too big.It sticks out too far.

Mack B · 06-17-2022, 02:23 PM

Mine appear to work. I’m using AC Delco rotors for an 87 r-10. Luckily upside down pictures make no difference in this post.

**The Rocknrod** · 06-17-2022, 04:25 PM

Take proper measurements before buying a wheel - call them what you will...

Chevy nutcase · 06-18-2022, 04:22 PM

Quote:

Originally Posted by Tom66C10

This isn't backspacing related. The hub on rotor is too big.It sticks out too far.

Pictures always help with questions and problems like what you are encountering. Look at the pic Rocknrod provided. On both diagrams I'm thinking the part labeled "C" is where you are having an issue. If that's the case spacers might be your easiest option as long as it leaves you with enough stud length sticking through those thick aluminum wheels

**Accelo** · 06-18-2022, 05:07 PM

I have machined either the wheel and/or the hub centers to make them fit.
Depending on where the most metal is.
The hub requires a much smaller lathe, so I typically start with the hub.
Much of the time it only requires a small amount for material to make it fit.
Take both the wheels and hubs to the machine shop if you go that route.
Cheers.

SCOTI · 06-20-2022, 11:44 AM

Quote:

Originally Posted by Accelo

I have machined either the wheel and/or the hub centers to make them fit.
Depending on where the most metal is.
The hub requires a much smaller lathe, so I typically start with the hub.
Much of the time it only requires a small amount for material to make it fit.
Take both the wheels and hubs to the machine shop if you go that route.
Cheers.

Agreed. Sounds like the rotors snout is possibly too large for the wheels hub dimensions. One or the other needs to be clearanced.

06-16-2022, 09:23 PM	#1
Tom66C10 Registered User Join Date: Sep 2012 Location: Tolono, IL Posts: 35	Issues with 15x7 Torq Thrust 2 on a 1966 C10 I have a 1966 C10 with disc brakes. I just bought 15x7 Torq Thrust 2 wheels and they hit the hub before seated all the way on the rotor. I had 15x7 truck ralleys on it before with 4" back spacing. These new wheels are 3 3/4. How are you guys running these wheels? Using spacers? I hate to do that since that will move them out even further. Is there a rotor with less hub size? It appears I'm hitting hub, and not the end of the dust cap. Thank you Tom

06-17-2022, 06:08 AM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Issues with 15x7 Torq Thrust 2 on a 1966 C10 I took backspace measurements first, then ordered the wheels with the backspace I needed. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

06-17-2022, 02:23 PM	#4
Mack B Registered User Join Date: Apr 2012 Location: L.ower A.labama Posts: 518	Re: Issues with 15x7 Torq Thrust 2 on a 1966 C10 Mine appear to work. I’m using AC Delco rotors for an 87 r-10. Luckily upside down pictures make no difference in this post. Attached Images

06-17-2022, 04:25 PM	#5
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Issues with 15x7 Torq Thrust 2 on a 1966 C10 Take proper measurements before buying a wheel - call them what you will... Attached Images __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

06-18-2022, 05:07 PM	#7
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,301	Re: Issues with 15x7 Torq Thrust 2 on a 1966 C10 I have machined either the wheel and/or the hub centers to make them fit. Depending on where the most metal is. The hub requires a much smaller lathe, so I typically start with the hub. Much of the time it only requires a small amount for material to make it fit. Take both the wheels and hubs to the machine shop if you go that route. Cheers.



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