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#1 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,729
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Alignment vs tire wear?
My 1998 is lowered with 2" spindles and 3" springs up front. I've always run factory alignment specs, and the tires aired up to the max on the sidewall [usually in the 50psi range when truck called for 35 on sticker] and yet I still wear the edges out with the centers like new. Wears evenly on both sides like this. Any alignment tricks I can do to help with the wear?
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-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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#2 |
Registered User
Join Date: Jan 2013
Location: Imperial, MO
Posts: 999
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Re: Alignment vs tire wear?
You're wearing out both the inner and outer edges before the center, or just the inner OR outer edges before the center? Can you post your current alignment printout?
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#3 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,980
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Re: Alignment vs tire wear?
I target the opposite of camber specs set by GM (if they say the camber range is .5 POS; I do .5 NEG). Tire wear is still within range & NEG camber helps keep the tires planted.
Adjust for the most Caster possible w/the NEG camber. Wearing inside & outside edges sounds like Toe is not set right.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#4 | |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,729
|
Re: Alignment vs tire wear?
Quote:
Truck has been this way for 100,000 miles now. Its had BFG's, Nitto's, Michelin's, and kumho's all do the same thing, and it's been aligned by at least 3 different shops. Front end has had basically everything replaced over that time and is in excellent condition. It drives great, just wears out my tires quickly. I have some ideas to try now, thanks guys!
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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#5 |
Registered User
Join Date: Jun 2012
Location: edmonton alberta
Posts: 422
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Re: Alignment vs tire wear?
if its on both edges of the tire I'd say its more of a toe issue. if you run a little more positive on your toe it might help take up slight play in the linkage as you're driving. if i remember right spec is -5 to +15 on those trucks, so id probably set it to +7ish
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Tyler ------------------------------------------------------ 1980 2wd blazer 1985 k10 diesel truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=652276 1987 wrangler 4x4 build-http://67-72chevytrucks.com/vboard/s...d.php?t=663784 |
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#6 |
Registered User
Join Date: Aug 2013
Location: sumterville, florida
Posts: 914
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Re: Alignment vs tire wear?
caster causes no tire wear, camber would have to be extreme to show wear. most all wear, from misalignment, is toe. but toe will not wear both edges and leave the center alone.
rub your hand across the tire and see if you can feel a directional wear. if there is a wear edge toward the outside it is toed too much out (you would feel that running your hand from the outside to the inside), if to the inside too much toe in if you feel no wear edge then your issue is either driving habits or some tires just wear oddly. many times i have seen one or two treads wear badly while the others were fine - and it was never an alignment issue. |
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