[Manaroo12]

New to the zook scene and wondering what lift is required for larger tyres without going extreme
thanks
manaroo12

[atari4x4]

nothing, get a hammer & a grinder.

[rpmwrx]

Theres a couple of ways you can go about this.

A 2 inch bodylift, or extended shackles with longer shocks, or a 2 inch spring lift with longer shocks to suit. All these options will enable you to run 29's or 30's. Personally, i would choose the spring lift with longer shocks.

[tanshi]

totally SPOA it, all the cool kids are doin it

[Fatzook]

Manaroo12 wrote:

New to the zook scene and wondering what lift is required for larger tyres without going extreme
thanks
manaroo12

29's...... Hammer the seams in your wheel arches flat and space your bumpstops a little bit. Or hammer your seams flat and fit a 40-50mm lift.

30's...... Same as above, but the lift will be pretty much manditory. You may have to trim the outriggers that hold the front bumper on also, but this depends on what offset rims you are using.

[Manaroo12]

Thanks for the info, I like the idea of a spring lift and hammer the seams,
With 30,s do you need reduction gears, I do not intend to go extreme
Manaroo12

[royce]

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

[suzi-fan-22]

i dont run reduction gears in mine but you should but anything over 30 will have to

ps mine is running 30's

[Fatzook]

Manaroo12 wrote:

With 30,s do you need reduction gears, I do not intend to go extreme
Manaroo12

It really does help. You can get by without them, but its so much easier to drive with some better gearing. If you are on a budget, search for a 1L sierra transfer case with the 4WD switch on it. Just swap your drive flanges over and slap it in. You'll get a 12% gear reduction in high range, and a little bit in low.

Otherwise, get yourself a set of 4.9:1 gears from Lowrange.

[Fatzook]

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

[steve125]

I run skinny 32s (7.50 16) with just a body lift, hammered seams and bar mount trimmed so 30s shouldn't be a problem if you do the same. Gears are 6.5s.

[royce]

Fatzook wrote:

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

and a 31x10.5R15 isnt 31" either, you dont think this constant use of misleading sizes on teh internet doesnt help to confuse n00bs into poor deals at tyre shop you decide the guy has no idea?

235/75R15 is considered the metric replacement of 30x9.5R15 in most catalouges, which somewhere along the line got internet bullshit altered to yeah 30's will fit a sierra with no mods and then oh they must mean a tyre that measures 30" which means I can get something marked 31" on there fine so then we start threads with hey will 33's fit with a 2" lift, afterall they are only a little bit bigger than what will fit stock

[stockman]

Alot of it is to do with tyre pressure too.

[stockman]

And I guess rim width plays a big factor too.

[Fatzook]

EDIT: Meh

[31zook]

I run 235/75R15 with no lift and a 1L transfer case. Pretty lowly geared is a good inroad compromise.

[boostedbrick]

royce wrote:

Fatzook wrote:

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

and a 31x10.5R15 isnt 31" either, you dont think this constant use of misleading sizes on teh internet doesnt help to confuse n00bs into poor deals at tyre shop you decide the guy has no idea?

235/75R15 is considered the metric replacement of 30x9.5R15 in most catalouges, which somewhere along the line got internet bullshit altered to yeah 30's will fit a sierra with no mods and then oh they must mean a tyre that measures 30" which means I can get something marked 31" on there fine so then we start threads with hey will 33's fit with a 2" lift, afterall they are only a little bit bigger than what will fit stock

I looked at allot of 235/75s and the average size is 28.8". Mine measure in at 28.6.. People would have to be stupid to think there equivalent to a 30" tyre.

As for gearing, im on a stock transfer and 1.6, and still really need to go lower.. On a 1.3 with stock gears they would be shit on anything that isn't flat.

[royce]

boostedbrick wrote:

royce wrote:

Fatzook wrote:

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

and a 31x10.5R15 isnt 31" either, you dont think this constant use of misleading sizes on teh internet doesnt help to confuse n00bs into poor deals at tyre shop you decide the guy has no idea?

235/75R15 is considered the metric replacement of 30x9.5R15 in most catalouges, which somewhere along the line got internet bullshit altered to yeah 30's will fit a sierra with no mods and then oh they must mean a tyre that measures 30" which means I can get something marked 31" on there fine so then we start threads with hey will 33's fit with a 2" lift, afterall they are only a little bit bigger than what will fit stock

I looked at allot of 235/75s and the average size is 28.8". Mine measure in at 28.6.. People would have to be stupid to think there equivalent to a 30" tyre.

As for gearing, im on a stock transfer and 1.6, and still really need to go lower.. On a 1.3 with stock gears they would be shit on anything that isn't flat.

Fuck you all jsut dont get it do you, go look in a catalouge for your average 30 or 31" tyre, they dont state the OD is 30 or 31 do they

[Fatzook]

royce wrote:

boostedbrick wrote:

royce wrote:

Fatzook wrote:

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

and a 31x10.5R15 isnt 31" either, you dont think this constant use of misleading sizes on teh internet doesnt help to confuse n00bs into poor deals at tyre shop you decide the guy has no idea?

235/75R15 is considered the metric replacement of 30x9.5R15 in most catalouges, which somewhere along the line got internet bullshit altered to yeah 30's will fit a sierra with no mods and then oh they must mean a tyre that measures 30" which means I can get something marked 31" on there fine so then we start threads with hey will 33's fit with a 2" lift, afterall they are only a little bit bigger than what will fit stock

I looked at allot of 235/75s and the average size is 28.8". Mine measure in at 28.6.. People would have to be stupid to think there equivalent to a 30" tyre.

As for gearing, im on a stock transfer and 1.6, and still really need to go lower.. On a 1.3 with stock gears they would be shit on anything that isn't flat.

Fuck you all jsut dont get it do you, go look in a catalouge for your average 30 or 31" tyre, they dont state the OD is 30 or 31 do they

I get it. You are saying that every tyre is undersized. So some people are using indicated measurements when giving advice and others are using actual measurements.

[Lokidog]

[Zook_Fan]

[lukemc]

Any chance someone could tak a picture of the bumper bits you need to trim please?

[JrZook]

royce wrote:

boostedbrick wrote:

royce wrote:

Fatzook wrote:

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

and a 31x10.5R15 isnt 31" either, you dont think this constant use of misleading sizes on teh internet doesnt help to confuse n00bs into poor deals at tyre shop you decide the guy has no idea?

235/75R15 is considered the metric replacement of 30x9.5R15 in most catalouges, which somewhere along the line got internet bullshit altered to yeah 30's will fit a sierra with no mods and then oh they must mean a tyre that measures 30" which means I can get something marked 31" on there fine so then we start threads with hey will 33's fit with a 2" lift, afterall they are only a little bit bigger than what will fit stock

I looked at allot of 235/75s and the average size is 28.8". Mine measure in at 28.6.. People would have to be stupid to think there equivalent to a 30" tyre.

As for gearing, im on a stock transfer and 1.6, and still really need to go lower.. On a 1.3 with stock gears they would be shit on anything that isn't flat.

Fuck you all jsut dont get it do you, go look in a catalouge for your average 30 or 31" tyre, they dont state the OD is 30 or 31 do they

BFG overall diameters:

235/75r15 = 29.1" on 15x6.5"rim

30x9.5r15 = 29.8" on 15x7.5"rim

31x10.5r15 = 30.8" on 15x8.5"rim

First fucken catalogue I found....

http://www.bfgoodrichtires.com/tire-sel ... -km2-tires

[TZAR]

Stop with the facts. Royce is right, just believe him OR ELSE

[CairnsZook]

JrZook wrote:

royce wrote:

boostedbrick wrote:

royce wrote:

Fatzook wrote:

royce wrote:

I dont know what you would really call a 29" tyre but the common size for a '30"' tyre is 235/75R15, perhaps on a stock rim

That size will fit fine with no lift and nothing worth worry about in the scrubbing department

A 235/75 R15 is at best, 29". Most are under 29".

EDIT:

A 30x9.5 R15 is equivelant to a 241/79 R15 ( not a real tyre size of coarse )

and a 31x10.5R15 isnt 31" either, you dont think this constant use of misleading sizes on teh internet doesnt help to confuse n00bs into poor deals at tyre shop you decide the guy has no idea?

235/75R15 is considered the metric replacement of 30x9.5R15 in most catalouges, which somewhere along the line got internet bullshit altered to yeah 30's will fit a sierra with no mods and then oh they must mean a tyre that measures 30" which means I can get something marked 31" on there fine so then we start threads with hey will 33's fit with a 2" lift, afterall they are only a little bit bigger than what will fit stock

I looked at allot of 235/75s and the average size is 28.8". Mine measure in at 28.6.. People would have to be stupid to think there equivalent to a 30" tyre.

As for gearing, im on a stock transfer and 1.6, and still really need to go lower.. On a 1.3 with stock gears they would be shit on anything that isn't flat.

Fuck you all jsut dont get it do you, go look in a catalouge for your average 30 or 31" tyre, they dont state the OD is 30 or 31 do they

BFG overall diameters:

235/75r15 = 29.1" on 15x6.5"rim

30x9.5r15 = 29.8" on 15x7.5"rim

31x10.5r15 = 30.8" on 15x8.5"rim

First fucken catalogue I found....

http://www.bfgoodrichtires.com/tire-sel ... -km2-tires

Couragia M/T:

235/75r15 734mm 28.9in
30x9.5r15 757mm 29.8in
31x10.5r15 785mm 30.9in
265/75r16 807mm 31.8in
33x12.5r15 833mm 32.8in
28575r16 835mm 32.9in

First one I found

http://www.federaltire.com/en/html/pdet ... e=2&ID=28#

[Manaroo12]

I am glad that I started this thread, obviously I am not the only n00b (as ROYCE calls us) that uses this site.
I am just a confused old bugger,
I do appreciate all the help or not that has been forth coming.
Thanks
Manaroo12

[CairnsZook]

Manaroo, I have 235x75r15's on my Sierra. I originally had 2in lifted springs only. The tyres rubbed the seam at the rear of the front guard and also rubbed on the bumper outrigger. These were bashed and ground down respectively. I also had about a 25mm bumpstop spacer on the front.

Now I have removed leaves and the springs sit flat. I've also put in a 1in bodylfit. Bumpstop spacers have been removed, there is no rubbing.

I also have 4.16:1 transfer case gears. I used to think the gearing was ok with the larger tyres. As soon as I put the lower t-case gears in, I realised just how shit it was. Gearing is now back to stock

[boostedbrick]

TZAR wrote:

Stop with the facts. Royce is right, just believe him OR ELSE

Ill just stop posting info that may of use to people in this discussion. God forbid you disagree on the internet

[SierraDan]

My 31's (30.5" OD) with 3.7 diffs and the 1L transfer is bearable to drive on road, and over all is okay offroad. But reduction gears are a better option if you're able to.