Hey Bias-ply guys...sizes??! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**grumpy** · 03-19-2011, 04:16 PM

Im thinking I want to run bias ply whitewalls on my trk.
I have access to 4 L-78-15s but not sure if those will be too big for the front.

I have 4 really nice plain steel 15" 5x5 wheels. so I know the tires will work on the wheels, but just dont know if thats too big a tire for the front.

My truck has 72 disc and 2 1/2" drop spindles and will be bagged soon.
Rear is 72 12-bolt bagged with 2" blocks.

So if you're rocking bias-plys, show some pics and tell us what the sizes are!

Thanks

*blackedoutharley* · 03-19-2011, 09:33 PM

The modern metric conversion for L78-15 is P235/75R15 if that gives you an idea of fitment possibilities for your truck.

**Corts60** · 03-19-2011, 09:48 PM

These are Coker 7.10-15's.

oem4me · 03-20-2011, 01:01 AM

For my low mile truck, I bought 7.10 X 15 Passenger car type tires. Almost a direct match (size and appearance) to the factory tires, (which I still have) but definitely would NOT be my first choice for a truck I planned to use much. If I take a corner hard, it feels as though the tires are going to come off the rims. Mushy as can be. I would consider radials.

62 Bowtie · 03-20-2011, 02:38 AM

I had L7815's too big for my taste and rubbed in the front, got G78's now

BarnFind · 03-20-2011, 11:20 AM

I had the 6.70 Firestones. Also, make sure the steel wheels clear the calipers. 1960-66 steel wheels will not, 67-72 are the ones you want.

blown240 · 03-20-2011, 11:29 AM

I have G78-15 in the front and L78-15 in the rear. I am looking for another apir of L78-15 so I can have them all the same.

**jocko** · 03-20-2011, 01:39 PM

concur with the metric equivalent is 235/75/15 - and here's what they look like on my truck. Personally, I like a fairly "tall" tire to fill up the wheelwells, so this was right up my alley. They will fit on the original 15 x 5.5" steelies (this is what I have on my truck also). These wheels will not work with disk brake set-ups though, as mentioned above. Hope this helps. (I say go for it!!)

1stseries55 · 03-20-2011, 07:22 PM

g-78..15s.....

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**grumpy** · 03-22-2011, 02:24 AM

Ok, I have a line a 2prs of L78-15s. And I know where 2 nice 7.10-15 www's are..
so I think im going to run L78-15s on the rear, and 7.10-15s up front.
All wide whitewalls.

I went to cokers website and looked up diameters and think I should be ok.

Plus the 7.10s will fill the wheelwell even tho I'll have drop spindles and bags.
Theyre basicly same height as a G78 but a tad more narrow.

03-19-2011, 04:16 PM	#1
grumpy Registered User Join Date: Feb 2007 Location: NE Ohio Posts: 737	Hey Bias-ply guys...sizes??! Im thinking I want to run bias ply whitewalls on my trk. I have access to 4 L-78-15s but not sure if those will be too big for the front. I have 4 really nice plain steel 15" 5x5 wheels. so I know the tires will work on the wheels, but just dont know if thats too big a tire for the front. My truck has 72 disc and 2 1/2" drop spindles and will be bagged soon. Rear is 72 12-bolt bagged with 2" blocks. So if you're rocking bias-plys, show some pics and tell us what the sizes are! Thanks __________________ Tim Road Hounds

03-19-2011, 09:33 PM	#2
blackedoutharley Account Suspended Join Date: Jul 2007 Location: Plumas Lake, Ca. Posts: 1,009	Re: Hey Bias-ply guys...sizes??! The modern metric conversion for L78-15 is P235/75R15 if that gives you an idea of fitment possibilities for your truck.

03-19-2011, 09:48 PM	#3
Corts60 Just here to tinker Join Date: Jun 2008 Location: Holland, MI Posts: 3,697	Re: Hey Bias-ply guys...sizes??! These are Coker 7.10-15's. __________________ 78 C10 SWB Diesel #1 (wrecked)http://67-72chevytrucks.com/vboard/s...1978+silverado 78 C10 SWB Diesel #2 (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=650751 60 GMC Suburban (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=445526 60 GMC 1000 (sold)http://67-72chevytrucks.com/vboard/showthread.php?t=298235 67 GMC 1500 (sold) http://67-72chevytrucks.com/vboard/s...d.php?t=803695 73 Chevy C20(Daily)http://67-72chevytrucks.com/vboard/s...d.php?t=852767 86 Suburban(summer unit) http://67-72chevytrucks.com/vboard/s...d.php?t=810697 88 Suburban 4x4(sold)

03-20-2011, 01:01 AM	#4
oem4me Registered User Join Date: Aug 2010 Location: Burbank CA Posts: 3,055	Re: Hey Bias-ply guys...sizes??! For my low mile truck, I bought 7.10 X 15 Passenger car type tires. Almost a direct match (size and appearance) to the factory tires, (which I still have) but definitely would NOT be my first choice for a truck I planned to use much. If I take a corner hard, it feels as though the tires are going to come off the rims. Mushy as can be. I would consider radials. Attached Images Last edited by oem4me; 03-20-2011 at 10:55 AM.

03-20-2011, 02:38 AM	#5
62 Bowtie Registered User Join Date: Nov 2008 Location: Elk Grove Ca Posts: 629	Re: Hey Bias-ply guys...sizes??! I had L7815's too big for my taste and rubbed in the front, got G78's now Attached Images

03-20-2011, 11:20 AM	#6
BarnFind Registered User Join Date: Oct 2010 Location: Santa Clarita, Ca. Posts: 80	Re: Hey Bias-ply guys...sizes??! I had the 6.70 Firestones. Also, make sure the steel wheels clear the calipers. 1960-66 steel wheels will not, 67-72 are the ones you want.

03-20-2011, 11:29 AM	#7
blown240 Registered User Join Date: Jan 2011 Location: CA Posts: 772	Re: Hey Bias-ply guys...sizes??! I have G78-15 in the front and L78-15 in the rear. I am looking for another apir of L78-15 so I can have them all the same.

03-20-2011, 01:39 PM	#8
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: Hey Bias-ply guys...sizes??! concur with the metric equivalent is 235/75/15 - and here's what they look like on my truck. Personally, I like a fairly "tall" tire to fill up the wheelwells, so this was right up my alley. They will fit on the original 15 x 5.5" steelies (this is what I have on my truck also). These wheels will not work with disk brake set-ups though, as mentioned above. Hope this helps. (I say go for it!!) Attached Images Last edited by jocko; 03-20-2011 at 01:40 PM.

03-20-2011, 07:22 PM	#9
1stseries55 Registered User Join Date: Oct 2008 Location: Pittsboro, NC Posts: 130	Re: Hey Bias-ply guys...sizes??! g-78..15s..... __________________ Jared USMC 1st Battalion 8th Marines (95-99) 55 1st Series 3100 (on 98 sonoma frame) 65 GMC short bed fleetside big back window http://67-72chevytrucks.com/vboard/s...d.php?t=358493

03-22-2011, 02:24 AM	#10
grumpy Registered User Join Date: Feb 2007 Location: NE Ohio Posts: 737	Re: Hey Bias-ply guys...sizes??! Ok, I have a line a 2prs of L78-15s. And I know where 2 nice 7.10-15 www's are.. so I think im going to run L78-15s on the rear, and 7.10-15s up front. All wide whitewalls. I went to cokers website and looked up diameters and think I should be ok. Plus the 7.10s will fill the wheelwell even tho I'll have drop spindles and bags. Theyre basicly same height as a G78 but a tad more narrow. __________________ Tim Road Hounds

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