20" WHEEL FITTMENT - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TEAM THC · 07-21-2005, 07:32 PM

Id Like To Put 20"s On My '82 C10 1/2ton 2wd 5lug
Id Like Some Info On Backing Spacing, What Are The Measurements
For My 5lug Pattern. Are Threr Any Problems With Fit(rubbing).
And Any Other Info I Need On Sizing 20s For My Truck.

CHEVYE · 07-21-2005, 08:36 PM

these are 5" backspace, of course there's no bed on it and i haven't slammed it yet. these trucks have huge wheel wells. you shouldn't run into too much problem at all. your measurements on lug pattern are 5 on 5"

milehightoyz · 07-21-2005, 08:38 PM

hey chevye, did you have any problems getting your front centercaps to work? i remeber having that truck with that wheels and had to take the dust cover off the front to get the centercap to work.

CHEVYE · 07-21-2005, 08:41 PM

they fit right up. i have the smaller non heavy duty brakes on this truck though. i'll have to try em on my other truck since it has the heavy duties. i wonder if there's a difference in the rotor cap size of the bigger brakes, does anyone know?

milehightoyz · 07-21-2005, 08:51 PM

cool...looks like a nice project...im thinking of picking up another set for my burb. they are pretty niec wheels for the money. thanks.

82c10 · 07-21-2005, 10:10 PM

if you don't mind, how much $$$$$

bigarmzz · 07-21-2005, 10:18 PM

Quote:

Originally Posted by 82c10

if you don't mind, how much $$$$$

those look like the "boss"...somethings

301's or 304's maybe....that are on www.bigjimsrims.com for around $145 apiece

CHEVYE · 07-21-2005, 10:44 PM

yeah, you can get a good used set with good tires for about $800. i'm thinking of getting 22's and 18's so i can run a 20/18 combo on the DD and a 22/20 combo when i get this other truck done.

laynlow77 · 07-22-2005, 01:04 AM

the center caps on the rotors are too big to fit over some of the center caps. on my 77 i had to get the center caps machined, and the rotors machined a lil bit.

bagged_and_bodydrop · 07-22-2005, 01:29 AM

I Have 20s Boss 305s, I think. Didnt have any problems with the center cap.

boxrodz · 07-22-2005, 12:05 PM

Quote:

Originally Posted by TEAM THC

Id Like To Put 20"s On My '82 C10 1/2ton 2wd 5lug
Id Like Some Info On Backing Spacing, What Are The Measurements
For My 5lug Pattern. Are Threr Any Problems With Fit(rubbing).
And Any Other Info I Need On Sizing 20s For My Truck.

How wide of a wheel are you planning on going with on the front and the rear? And, how much of a drop do you have or plan to have?

5" bs on a 20x8 should work in the front. Out back, 5" bs on a 20x10 should work. If you go 20x8's with a 5" bs on all four corners, the rears will be offset in more than what is needed, but it should work. And as Chevye said, your bolt pattern is 5 on 5. If you haven't radically altered your suspension or brakes, you shouldn't have any rubbing issues with the correct offset.

bagged74 · 07-23-2005, 12:16 AM

these are 20x8s with 4.5"BS and 245/40s, and 20x9.5s with 5.5"BS and 275/35s. the fit great.

07-21-2005, 07:32 PM	#1
TEAM THC CUSTOM CHEVY FIEND Join Date: Jul 2005 Location: CHICO CA Posts: 227	20" WHEEL FITTMENT Id Like To Put 20"s On My '82 C10 1/2ton 2wd 5lug Id Like Some Info On Backing Spacing, What Are The Measurements For My 5lug Pattern. Are Threr Any Problems With Fit(rubbing). And Any Other Info I Need On Sizing 20s For My Truck.

07-21-2005, 08:36 PM	#2
CHEVYE my gas saver Join Date: Sep 2003 Location: Clarksville, TN Posts: 2,046	these are 5" backspace, of course there's no bed on it and i haven't slammed it yet. these trucks have huge wheel wells. you shouldn't run into too much problem at all. your measurements on lug pattern are 5 on 5" Attached Images __________________ 85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback

07-21-2005, 08:41 PM	#4
CHEVYE my gas saver Join Date: Sep 2003 Location: Clarksville, TN Posts: 2,046	they fit right up. i have the smaller non heavy duty brakes on this truck though. i'll have to try em on my other truck since it has the heavy duties. i wonder if there's a difference in the rotor cap size of the bigger brakes, does anyone know? __________________ 85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback

07-21-2005, 10:10 PM	#6
82c10 needin' money Join Date: May 2005 Location: Chickasha, Oklahoma Posts: 1,106	if you don't mind, how much $$$$$ __________________ *SWB Stands for Short Wide Bed*

07-21-2005, 10:44 PM	#8
CHEVYE my gas saver Join Date: Sep 2003 Location: Clarksville, TN Posts: 2,046	yeah, you can get a good used set with good tires for about $800. i'm thinking of getting 22's and 18's so i can run a 20/18 combo on the DD and a 22/20 combo when i get this other truck done. __________________ 85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback

07-21-2005, 08:38 PM	#3
milehightoyz AttentionDeficitDisorder Join Date: Mar 2005 Location: COLORADO Posts: 600	hey chevye, did you have any problems getting your front centercaps to work? i remeber having that truck with that wheels and had to take the dust cover off the front to get the centercap to work.

07-21-2005, 08:51 PM	#5
milehightoyz AttentionDeficitDisorder Join Date: Mar 2005 Location: COLORADO Posts: 600	cool...looks like a nice project...im thinking of picking up another set for my burb. they are pretty niec wheels for the money. thanks.

07-22-2005, 01:04 AM	#9
laynlow77 Registered User Join Date: Nov 2004 Posts: 115	the center caps on the rotors are too big to fit over some of the center caps. on my 77 i had to get the center caps machined, and the rotors machined a lil bit. Last edited by laynlow77; 07-22-2005 at 01:06 AM.

07-22-2005, 01:29 AM	#10
bagged_and_bodydrop Just drag it Join Date: Dec 2004 Location: ardmore, oklahoma Posts: 98	I Have 20s Boss 305s, I think. Didnt have any problems with the center cap. Attached Images

07-23-2005, 12:16 AM	#12
bagged74 its just $$$$$ Join Date: Jul 2003 Location: OK Posts: 2,078	these are 20x8s with 4.5"BS and 245/40s, and 20x9.5s with 5.5"BS and 275/35s. the fit great. Attached Images



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