315-75-16's on stock wheels with 1" block in the back and torsion bars cranked almost all the way.

Do you have Green-Keys as well, or just stock keys cranked up? Also, how bad do those tires "float" or "wander" around on the highway? I had 305 on 1/2-ton stock wheels once and it was horrible at 85mph how bad the truck would almost fishtail.

Do you have Green-Keys as well, or just stock keys cranked up? Also, how bad do those tires "float" or "wander" around on the highway? I had 305 on 1/2-ton stock wheels once and it was horrible at 85mph how bad the truck would almost fishtail.No just stock keys cranked up. They dont float at all, I made sure it was aligned right after the torsion bar adj. and new tires. I can take my hands off the wheel and it doesn't wander.

TRUCK LOOKS AWESOME :cool2:

HEMIEATER,


How wide are the tires as in (inches)wide?



How do you like the predator so far, and did the bigger tires cause a noticable power loss?

What are your 1/4mile times with your setup?

:ro)

TRUCK LOOKS AWESOME :cool2:

HEMIEATER,


How wide are the tires as in (inches)wide?



How do you like the predator so far, and did the bigger tires cause a noticable power loss?

What are your 1/4mile times with your setup?

:ro)Thanks:D The section width is 12.87", tread width is 10" and the overall dia. is 34.6". The Predator Rocks! Very smooth with great power. I run the 65 hp. tune no slipping or limping. The bigger tires did make a difference in the power,it is slower off the line but it will still break'em loose in 2nd gear. It's winter here in NY so I have'nt had a chance to take it to the track yet, I will come spring.

Please keep in mind that the 315/75R16 is supposed to be mounted to a 8-10" wide rim !! The stock rims are 6.5" AFAIK.

looks nice, hope you dont tow much that often. those sidewalls have to suck in alot on a 6.5 inch rim. my wheels are 8.5 inches wide and would run 10 inch wheels if I could.

Nice looking truck. Just be careful with those stock wheels and that size of tire. A buddy of mine did the same thing and realized it wasn't such a good idea when he took a corner and the tire came off the rim.

That looks pretty good, maybe I should go bigger. I do like how it tows right now with the 285s though...

heres some usefull info. i have 265's on 8 inch wheels and my buddy has 285 on his stock wheels. my 265 are about a inch wider them my buddies 285's.

Any down fall to have 285's on stockers? Looking at BFG land terrian

oteo125-The wider rim will make quite a difference, my brother has the exact same tire as me but he has an 8" wheel and his tires look wider. I'd like some aftermarket rims but I'm cheap and this works ok. They fit easily and helped a lot in the mud and offroad crap I drive through.

i just ordered me a set of 315's. i had 285's but after the lift they are small. your truck looks awsome. i will get before and after pics of my truck.

also incase you are wondering i am not loaded with money i got my tires from town fair tire and was garanteed that if i didnt like my tires i could return them with in 30 days and get bigger or smaller tires. it just so happends i can get 315's for the same price so i went for them. i will have pics tuesday i hope. if they try to pull any hidden costs or fees i am not doing the deal.

Nice Hemieater.

I plan on adding 315 mud tires to stock wheels as well, hopefully soon.

You got any more pics? Maybe possibly looking down the side of the truck showing if the tires stick out at all from the truck?

Do they not rub up front when turning. I was thinking about getting some 315's for my 01. I have torsion bars raised but no block in the back. Would they still fit?

Here are some more pics. Hope they help, no you don't need the rear block but it keeps the back higher than the front when torsion bars are cranked up. They did rub on the lower air dam, and the inner fender by the E-Brake cable, but I drilled a hole in the wheel well and held it back with cable ties. They will rub slightly on the sway bar when the wheel is turned all the way to the right, not bad at all though. I love them they ride great and have had them off road in some mud and hills, they tear it up! I had a 2000 1500 silverado with a 3" body lift that also had 315's on the stock wheels and never ahd a problem in the 30,000 miles I put in them. Thats why I went with the 315's again on this truck.

Well then my only question now is are the 01-02 have the same clearnace as the new HD's? My torsion bars are cranked up. Where is a good place to purchase some 315 mud tires?

Well then my only question now is are the 01-02 have the same clearnace as the new HD's? My torsion bars are cranked up. Where is a good place to purchase some 315 mud tires?Yes, I believe they should have the same clearance, somone correct me if I am wrong. I bought mine from a friend who owns a transmision shop. He ordered and installed them for me. Pep Boys will also order any tire you want pretty reansonably, or there is always the tire rack.

That does look sharp, makes me want different tires. I had 285's before the green keys and then after putting them on makes me want to go bigger. That will be a while, I gotta wear this out first. Hmmm, I smell smoke.;)

sweet truck dude

Hemieater,

Did you go from 245's to these 315's?

I'm wondering if going from the stock load range E 245's to load range D 315's will soften my ride a little since the load ratings are different and there is more sidewall on the 315's?

Did you notice a better ride with these new 315's?

The bigger sidewall will improve the ride a lot.. Also air pressure plays a part in that too... My D range 285s actually have a higher # load rating than my stock 245s did...

Hemieater,

Did you go from 245's to these 315's?

I'm wondering if going from the stock load range E 245's to load range D 315's will soften my ride a little since the load ratings are different and there is more sidewall on the 315's?

Did you notice a better ride with these new 315's? I went from 285's to the 315's ( I melted the 285's away when I got the Predator ) You will notice a softer ride like _nar_ said.

Do you have to get longer shocks for just the 1" block or does that little bit matter? How about hauling something like fourwheeler or pulling trailer. Can you tell me a comparison between 33"x12.5 and like say 285x75x16 or 305x75 or 315x75? Which is taller,wider, than other.

What psi are you running in your 315's Hemieater? My HD rides like a log truck.

Z71 grizzly-http://www.intercotire.com/html/metric-tire.htm

285-75-16 = 32.8-11.2-16
305-75-16 = 34-12-16
315-75-16 = 34.6-12.4-16

The 33s I have had in the past were never quite 33 inches tall, so the 285 is fairly close. That varies from brand to brand though. Some 33s are taller than others. Less width on the 285 though. Not a lot really.

Also keep in mind the wider the rim the bigger the tire will look... Even though actual tread patch won't change, there is more or less sidewall bulge.

What psi are you running in your 315's Hemieater? My HD rides like a log truck.40 in the front and 35 in the back. It's cold here now, come summer I'll probably take 5 out of each.

just be careful with those narrom rims.. i wouldn't town anything super heavy..

How does a 285x75 compare with width 33x12.5 on an 8" rim

When I get a Dmax I want a little narrower tires than what I have on my Z71 right now. I have 4" susp. lift an 33x12.5x15" on 8" wide rim. Floats all over the road especially right now in winter.

When I had 33-12.5-15s on an older truck they did the same thing. The 285s on 16x6.5 inch rims don't seem to float at all, at least on my truck. I really like them. My brother has the same tires on 16x8 AR atlas wheels and they look wider on the sidewall, but have the same tread patch of course. They never seemed to float or anything on his either. If I wasn't so cheap I'd have a set of those wheels too. They are pretty close to the 33s, just a bit more than an inch narrower. If the damn wireless guy had gotten here to install my brother's internet I could get you some pictures of how his look compared to mine.

If you could ,Thank's nar. If I would have gotten 16" rims for my Z71 I could have had more styles of tires but the rims I got only came in 15 or 16.5. Just have to wait until I get the HD before I get narrower tires.

Its apples and oranges, but I haven't noticed any floating with my 365/65-16s on 10" rims. These truck are so darn heavy in the front.

So my 315's would be narrower with factory wheel as opposed to a 8" wide wheel. And do 315's measure to a 35"

The sidewall is narrower because it has to pull in to the rim. The contact patch of the tread won't be smaller. Sometimes though the tire tread will sit flatter on the ground with a wider rim, on the stock rim it will be kinda rounded because the sidewall is pulling on it. So a wider tire on a narrow rim may have less contact with the ground. That's why they recommend 8 and bigger rims as tire width grows.

315-75-16 = 34.6-12.4-16

i agree the duramax is extremely front heavy ..... i pulled in on my neighbors already soft driveway ...2 mins later after a little chat in the house i come out and the front end was setting on the frame.

oh ya i got out no problem....just a little help from the 4x4 button

Anybody running 255-85R16 ?

Anybody running 255-85R16 ?
Yup. I have Dunlop RVXTs in that size. They are almost 33" tall and are rated to be OK on a 6.5" rim. That said, I will be changing to 295/75/16 BFG ATKOs on the OEM rims when summer comes around again. :cool2: The 255s look a little small to me now that the Buckstop front bumper increased the clearance in the front wheel well so much.

What are you all getting for fuel milage with 315's and 285's? I want to go with 315s,:ro) but if it's a big difference between the two then 285s might fit more of my style. :thumb:

I guess I went the other way. The 285 BFG's looked great on my 8" Eagle alloys but towed like sh*t and rubbed no matter how much trimming I did on the plastic. Cranking the torsion bars are not an option for me as I already tow right at the trucks legal limits. I went back to 265 BFG ATKO's and all is right with the world once again...no rubbing, better fuel mileage and 100% better towing. I too know someone who put wide tires on skinny rims, one tire seperated from the rim in a turn and killed him and a passenger about 3 years ago. But ya'll do what your comfortable with. 315's on 6.5" rims:badidea:

How wide is a stock HD wheel?

16x6.5

so it isnt godd putting a 315 on this wheel? What about 305's?

The stock wheels are good for what they come with from the factory!

305's and 315's need between a 8.5" wide to 10" wide rim.
285's need from a 8" to 9.5" wide rim.
265's need from a 7.5" to 9" wide rim.

Go outside of this and your begging for trouble.

see more at http://www.chris-longhurst.com/carbibles/

well ive had 285's on my HD on stock wheels for 2 years with no problems. So ill guess ill put 305/315 on my stock wheels too

Good thinking!:duh:



well ive had 285's on my HD on stock wheels for 2 years with no problems. So ill guess ill put 305/315 on my stock wheels too

From the BF Goodrich spec sheet.

http://www.ntwonline.com/natltire/images/MudTerrKM.gif

i'm goin with the goodyear mt/r in 305/70r17 on h2 wheels. They are 34"'s. Should be a good setup and look good also. I don't wanna go much bigger then that. just my .02cents.

That ought to be a nice setup. Those mtrs are sweet tires.

I had to go to 4 different shops just to get the 265-75-16s mounted on the stock rims. I personally wouldn't go any bigger than that on those rims. Plus like somebody else mentioned I didn't have to do any other messing around with ride hieght and trimming.

305's and 315's need between a 8.5" wide to 10" wide rim.
285's need from a 8" to 9.5" wide rim.
265's need from a 7.5" to 9" wide rim.

Go outside of this and your begging for trouble.

see more at http://www.chris-longhurst.com/carbibles/GM's been putting 265's on 6.5" wide rims for quite some time. My 99 Silverado came with 265's on 6.5" wide rims. I highly doubt they would do this if there was a concern. Mfg's are usually extra conservative. I would never go 315's on the stock rims but I have been running 285's for close to 50,000 on my 1500HD and tow up to 10000lbs with no problems.

Isn't that odd. I've had two '99 1500 Silverados and both came with 7" wide rims. The 1500HD's came with 245 series tires on 6.5" wide rims. What gives?:think:

<TABLE class=infotable cellSpacing=0 cellPadding=2 width="96%" align=left border=0><TBODY><TR><TD class=subheadLg style="BORDER-BOTTOM: #999999 1px solid" colSpan=2>1500HD Technical Specification</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Brakes




Electronic brake distribution
Four-wheel ABS
Four disc brakes including four ventilated discs


</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Dimensions



External dimensions: overall length (inches): 237.2, overall width (inches): 79.1, overall height (inches): 77.3, ground clearance (inches): 8.3, wheelbase (inches): 153, front track (inches): 68.6, rear track (inches): 66 and curb to curb turning circle (feet): 49.6
Internal dimensions: front headroom (inches): 41.1, rear headroom (inches): 39.9, front hip room (inches): 61.4, rear hip room (inches): 62.9, front leg room (inches): 41.3, rear leg room (inches): 38.8, front shoulder room (inches): 65.2 and rear shoulder room (inches): 65.1
Cargo area dimensions: length (inches): 78.7, front width (inches): 64.8, width between arches (inches): 50 and height (inches): 19.5



</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Engine


Auxiliary oil cooler
5,967 cc 6 liters V 8 front engine with 101.6 mm bore, 92 mm stroke, 9.4 compression ratio, overhead valve and two valves per cylinder LQ4
Heavy duty engine cooling system
Emission control level FED


</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Engine Performance



Power: 224 kW , 300 HP SAE @ 4,400 rpm; 360 ft lb , 488 Nm @ 4,000 rpm


</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Fuel



Multi-point injection fuel system
Unleaded fuel
26 gallon main unleaded fuel tank



</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Steering



Power steering
Leather covered multi-function steering wheel with tilt adjustment


</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Suspension



Wishbone front suspension independent with stabilizer bar and torsion springs , beam rear suspension rigid with leaf springs



</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Transmission



Auxiliary transmission cooler
Automatic four-speed heavy duty transmission with mode select, lock-up, electronic control, shift lever on column and low/high gear ranges MT1
3.73:1 axle ratio
Full-time 4x4-wheel drive selectable while driving, manual and speed limited (manual only)



</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Version




Trim level: LT
Four-door pickup crew body style
Seating: five seats


</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Weights







Weights: gross vehicle weight rating (lbs) 8,600, curb weight (lbs) 5,817, gross trailer weight braked (lbs) 7,900 and max payload (lbs) 2,783





</TD></TR><TR><TD width=9>http://vo.dealerimpact.com/JNCS/images/frame/space.gif</TD><TD class=defaulttext>Wheels



Front and rear alloy chrome wheels with 16 inch rim diam, 6.5 inch rim width and partial wheel covers
Fullsize steel rim under body spare wheel
Front and rear all seasons tires with 245 mm tire width, 75% tire profile, S tire rating and black sidewall





</TD></TR></TBODY></TABLE>










































































































































GM's been putting 265's on 6.5" wide rims for quite some time. My 99 Silverado came with 265's on 6.5" wide rims. I highly doubt they would do this if there was a concern. Mfg's are usually extra conservative. I would never go 315's on the stock rims but I have been running 285's for close to 50,000 on my 1500HD and tow up to 10000lbs with no problems.

Seems funny doesn't it??

http://www.carsdirect.com/research/chevrolet/silverado_1500/1999/lt_style18/features

Shows 6.5" wide on the 1999 LT Ext. Cab 1500.

When I measured my wheels on my 2000 1500 whith no tire on them, they were 6.5 inch. They were the aluminum ones, not the steel wheels.

staticx, let me know how the 305's work, I got a set of H2's and was thinkin about 285's but you got me thinkin 305's!! Don't want to lift, just trim and tuck!

Seems funny doesn't it??

http://www.carsdirect.com/research/chevrolet/silverado_1500/1999/lt_style18/features

Shows 6.5" wide on the 1999 LT Ext. Cab 1500.Yep, it also shows 245 75R16 tires on 6.5" rims. Where did you find 265 series tires on 6.5" rims from the factory? Are you sure the dealership didn't put the 265's on the truck before you bought it? Also I should add, both my '99's were 1500 series, one 2wd work truck and the other Z-71 personal truck.

Yep, it also shows 245 75R16 tires on 6.5" rims. Where did you find 265 series tires on 6.5" rims from the factory? Are you sure the dealership didn't put the 265's on the truck before you bought it? Also I should add, both my '99's were 1500 series, one 2wd work truck and the other Z-71 personal truck.I think the 265 OWL was an option at that time. My truck was ordered in and I don't believe the dealer changed them on me or at least I never requested him to. After it was ordered I had made the decision to switch from the Firestones to Bridgestones because of all the issues Ford was having with them at that time.

i bought ym truck used and it's got 285's on it and it looks like the torsion bars are cranked almost all the way on it. I'm gonna go with the cognito levelings arms and green keys i'm lookin for 2 maybe 3"s of lift.

If you could ,Thank's nar. If I would have gotten 16" rims for my Z71 I could have had more styles of tires but the rims I got only came in 15 or 16.5. Just have to wait until I get the HD before I get narrower tires. here is a nar/twotone comparison
http://img219.exs.cx/img219/9103/p21600151jj.jpg
http://img219.exs.cx/img219/1189/p21600167va.jpg


http://img219.exs.cx/img219/7055/p21600135zs.jpg
http://img102.exs.cx/img102/8326/PB180037.jpg

Thank's Two Tone 98Z71. Nice looking trucks.

thanks

Now if he'd just buy me a set of those wheels too...

Bwahahahahahahahahahahahaaaaaaaa No