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Factory tyre sizes
Posted: Wed Apr 08, 2009 5:19 pm
by JrZook
Ok I would like straight answers, no try and search rubbish please (yes ive tried). Ive been chatting to an engineer up here in FNQ. Now what i would like to know is - what was the biggest tyre size that came out factory on any suzuki sierra diffs, LWBs utes maruriti etc.
Thanks for your help, Dan
Posted: Wed Apr 08, 2009 5:32 pm
by cj
6.00-16
Posted: Wed Apr 08, 2009 5:34 pm
by Zook_Fan
and that is on LWB's
Posted: Wed Apr 08, 2009 5:39 pm
by JrZook
cj wrote:6.00-16
Do we know what that roughly equates to in inch?
Cheers for the reply
Posted: Wed Apr 08, 2009 6:04 pm
by Zook_Fan
the pair i have are slightly taller than 235/75's so around 30"
Posted: Wed Apr 08, 2009 6:06 pm
by Zook_Fan
no sorry bit more research says they are exactly 28".
16" rim and the 6 stands for width and height of side wall, so
16 + 6 + 6 = 28"
Posted: Wed Apr 08, 2009 7:45 pm
by grimbo
JrZook wrote:cj wrote:6.00-16
Do we know what that roughly equates to in inch?
Cheers for the reply
bogged from elsewhere
"Old" tyre dimensions are in inches, e.g. 6.00 x 16. The tyre carcass width and height are both 6", so there is no need to specifiy an aspect ratio (it is 1.0), and the overall tyre diameter is 2 x 6 + 16 = 28", in this case.
Posted: Wed Apr 08, 2009 8:40 pm
by mrRocky
My 96 1 ltr w/t stockman came with the original spare tyre unused underneath the tray specs are
MRF Estate F78-15LT
94L 4 ply rating
35psi max
Its oldschool chunky and looks pretty cool, must have been a special order or something, i brought it of a farmer/1 owner with 130,000
delivery papers and dealership service history, probably the biggest standard tyre ive seen on a gooki oh and i paid 3k just to rub it in.
Posted: Wed Apr 08, 2009 11:13 pm
by cj
grimbo wrote:JrZook wrote:cj wrote:6.00-16
Do we know what that roughly equates to in inch?
Cheers for the reply
bogged from elsewhere
"Old" tyre dimensions are in inches, e.g. 6.00 x 16. The tyre carcass width and height are both 6", so there is no need to specifiy an aspect ratio (it is 1.0), and the overall tyre diameter is 2 x 6 + 16 = 28", in this case.
And that's why you can't trust the internet
They're actually a 29" tyre. Go to a tyre shop and ask to look in the tyre and rim manual for the nominal OD. You'll find two sizes listed, a highway size and a traction (mud tyre) size which will be bigger, that's the measurement you need.
Posted: Sat Apr 11, 2009 10:30 am
by Jock
mrRocky wrote:My 96 1 ltr w/t stockman came with the original spare tyre unused underneath the tray specs are
MRF Estate F78-15LT
94L 4 ply rating
35psi max
Its oldschool chunky and looks pretty cool, must have been a special order or something, i brought it of a farmer/1 owner with 130,000
delivery papers and dealership service history, probably the biggest standard tyre ive seen on a gooki oh and i paid 3k just to rub it in.
Early sierras had these as standard fitment
F78-15 or FR7815. They equal the same size as a 205/70R15.
This is the old alpha numeric tyre sizing system. Very outdated and hardly used anymore.
The F is the tyre load capacity
The R or B or no letter of it indicates a radial tyre or not
The 78 is the aspect ratio
the 15 is the rim size
The letter wasn't constant either. as it was based on carrying capacity and not width so it is a very confusing system
Posted: Mon Apr 13, 2009 7:01 pm
by mrRocky
how early ? mine was 96 dealer delivered i would say thats late model as far as leaf sprung sierras go