Hi guys,
I wanted to know the cheapest way to get 31' x 10.5's on an 89 sierra, maybe a small suspension lit and some 2nd hand tires? i just want my car to be able to drive on soft sand well..
cheers
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cheapest way to get 31's on an 89 sierra
i just did a 2" body lift and thats it. ive got 31x10.5R15 on 15x8" rims - no scrubbing besides on the rear of the front leaves at FULL FULL lock and it only just scrubs....just 
mines a 87 chassis with 91wt body - 1.3 NT sierra
oh and total cost: $200
and that was for a 2" body lift kit from a mate who got it from Just-Cruizsen on this forum
mines a 87 chassis with 91wt body - 1.3 NT sierra
oh and total cost: $200
and that was for a 2" body lift kit from a mate who got it from Just-Cruizsen on this forum
just beat a Marlin in a swimming race
Re: cheapest way to get 31's on an 89 sierra
hay mate if you put 31s on your sierra for sand driving it will make it worse unless u fix the gearing issue it will have no power and struggle like sh!t.pedzies wrote:Hi guys,
I wanted to know the cheapest way to get 31' x 10.5's on an 89 sierra, maybe a small suspension lit and some 2nd hand tires? i just want my car to be able to drive on soft sand well..
cheers
cheers scott
2" BL- 31's no worries.
Suspension lift will not clear a bigger tyre unless your bumpstops are moved down.
A 2" suspension lift that clears 31's without rubbing will mean the springs are too stiff or the shocks are too long and acting as bumpstops.
Steve.
Suspension lift will not clear a bigger tyre unless your bumpstops are moved down.
A 2" suspension lift that clears 31's without rubbing will mean the springs are too stiff or the shocks are too long and acting as bumpstops.
Steve.
[quote="greg"] some say he is a man without happy dreams, or that he sees silver linings on clouds and wonders why they are not platinum... all we know, is he's called the stevie.[/quote]
Re: cheapest way to get 31's on an 89 sierra
so let your tyres down, you don't need lift or big tyres you need low tyre pressures. Larger tyres will mean your gearing is out and it wont have anywhere as much power as with smaller tyres with low pressurespedzies wrote:i just want my car to be able to drive on soft sand well..
cheers
Ransom note = demand + collage
In fact, for cars with limited horsepower (like everyone, really) wide tyres aren't helpful at all.
Watch a wide tyre on the sand - there's a little bow wave of sand being pushed in front of the tyre when the cars moving. The wider than bow wave is, the more power it takes to push it.
What you really need is a tall, narrow tyre. The same cm2 of footprint in a narrower tyre will take less power but the same floatation.
Ever wondered why Paris/Dakar cars run 7" wide tyres... with 400L of fuel and massive, massive dunes? It's becuase they are generally horsepower limited, if not by rules (although they often are) then by fuel range. Smaller tyres take much less power to push.
That's the ting. When you air down, the tyre gets longer, not wider, and that's why it's a a massive advantage.
Gearing, of course, is vital.
Steve.
Watch a wide tyre on the sand - there's a little bow wave of sand being pushed in front of the tyre when the cars moving. The wider than bow wave is, the more power it takes to push it.
What you really need is a tall, narrow tyre. The same cm2 of footprint in a narrower tyre will take less power but the same floatation.
Ever wondered why Paris/Dakar cars run 7" wide tyres... with 400L of fuel and massive, massive dunes? It's becuase they are generally horsepower limited, if not by rules (although they often are) then by fuel range. Smaller tyres take much less power to push.
That's the ting. When you air down, the tyre gets longer, not wider, and that's why it's a a massive advantage.
Gearing, of course, is vital.
Steve.
[quote="greg"] some say he is a man without happy dreams, or that he sees silver linings on clouds and wonders why they are not platinum... all we know, is he's called the stevie.[/quote]
I was going to say this, plus borrowing your mates welder for bump stop extensions.love_mud wrote:Angle grinder ...
Including cost of purchase of the grinder you will only be out about $50
That said big tyres aren't the be all and end all of offroading.
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