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- - Wheel/tire size (https://67-72chevytrucks.com/vboard/showthread.php?t=795818)

seafoam68

10-30-2019 09:20 PM

Wheel/tire size

Hey guys. Getting ready to order front wheels and tires. Anyone know factory sizes, backspaces? Or what you are running? Truck is a big block and lowered 4.5 inches in front.

siggyfreud

10-31-2019 08:25 PM

Re: Wheel/tire size

You looking for factory sized wheels, or just as a reference point and going with something else?

3757chevy

11-01-2019 12:16 AM

Re: Wheel/tire size

big block truck ?

3757chevy

11-01-2019 12:17 AM

Re: Wheel/tire size

I run a 245/60-15 on a 15x8 with 4 1/4" backspace.

Rufas

11-01-2019 01:51 AM

Re: Wheel/tire size

I'm running 275/45-20s. If I remember, standard backspacing. Two inch drop spindles, flipped axle - notched frame, bagged on all corners. As it sit about a 7 inch drop.

https://live.staticflickr.com/4775/4...26f3bd43_b.jpg

Ekliptix

11-01-2019 12:50 PM

Re: Wheel/tire size

I have a big block and am also lowered 4.5" in the front. I'm on factory 5x15" rims. Tires are this:
https://i.imgur.com/PTTATRkh.jpg
https://i.imgur.com/aAIqxy3h.jpg
https://i.imgur.com/q930QFL.jpg

weq92f

11-01-2019 01:04 PM

Re: Wheel/tire size

Quote:

Originally Posted by Ekliptix (Post 8619789)

I have a big block and am also lowered 4.5" in the front. I'm on factory 5x15" rims. Tires are this:

Hey...you didn't 'light paint' that wheel picture!

jk

-klb

seafoam68

11-12-2019 07:37 PM

Re: Wheel/tire size

Hey guys, thanks for the replies. I should have noted I'm planning on running Weld draglites. I just didn't know what size to order. I'm thinking about a 6" width or so but didn't know the backspace.

Mike C

11-13-2019 08:45 AM

Re: Wheel/tire size

3.5” backspacing is zero offset on a 6” wide rim and zero offset is a good place to start on these trucks IMO.

I have 17x8 on the front with 4.5” backspace (also zero offset) and 235 55 17.

Rear of my truck is a 17x9 with 5” backspace (once again, zero offset) and 275 55 17.

An 8” wide rim measures 8” BETWEEN beads. Overall outside to outside will be right a 9”. Measured from wheel mounting surface to outside of the inside of the wheel is backspacing. Zero offset means the WMS is right in the middle of the wheel and that is 4.5” on an 8” rim.

Based on weight of the truck, width of the truck, size of the wheel well, IMO a 17” or 18” wheel would be a better choice. I would also get away from 15” rims as the choice of tire sizes and load ratings just isn’t what it once was. The 17” wheels on my short bed is the best mod I’ve done.

Speedracer39

11-13-2019 11:06 AM

Re: Wheel/tire size

3 Attachment(s)

72 c10 big block flip kit and drop spindles with 1 inch big block drop springs 295/40/20 on rear and 245/40/20 on front

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