Crazy inner outer front tire wear, huh?

[John C Holmes]

Brand new tires when I bought the Ty a year and some months ago. 20k later rears still look new and fronts have little to no inner outer tread. I also hear a droaning sound at low speeds and get teeth shattering vibrations over 60. I've had all fours balanced and aligned twice in last six months. Most recent being two weeks old. We're looking at 115k on the odom. Nothing replaced that I know of. So, I'm thinking everything from cv half shafts, upper/lower balls, broken hub ass., idler/ pitman,etc., bushings, and maybe even front diff. What I'm asking is which of these could cause my symptoms. I do tons of highway driving and its rattiling me to death since day one. TIA
Cody

 

[TheObiJuan]

hi there. have you tried replacing or inspecting your propshaft. if that is the culprit then al dustan has some really nice ones out there.

 

[ParTyBoy]

hi there. have you tried replacing or inspecting your propshaft. if that is the culprit then al dustan has some really nice ones out there.

most likely it's the front propshaft that's causing the vibration... Any Leaks or boot tears? ...I recommend inspecting the front differential for shavings and checking the fluid level as well... most likely it's the propshaft, but it never hurts to check everything else..

BTW: when's the last time you changed your transfer case fluid...??

 

[myclone]

Vibration over 60mph even after tire rebalance... Hmm. If the propshaft checks out ok then its poss youre seeing the same tire balance issue that a fellow board member went through. He found while chasing a persistant vibration that when the tires were rebalanced that the cone shaped adaptors were riding on the uneven surface that is between the lug holes (its what the center cap is bolted to/rests on on a stock syty wheel) on the balance machine. This surface is not "true" or "on center" with the actual center of the wheel and causes the balance machine to give an incorrect reading. The adaptors that fit the wheels to the balancer need to contact the surface of the hole in the center of the wheel (where the axle fits through) to give a correct reading.

You might do a search and see if his findings and post about it are still around. Look under GM TURBO for the author.

BTW, when I purchased new SVXs for my truck and had them mounted I watched the guy balance them and found that what GM TURBO discovered is correct. Showed the guy balancing them what was up and he swapped adaptors and rebalanced them. The tires were "unbalanced" right off the machine once he checked them with the correct hub adaptors again.

This may not be your prob but might be worth investigating if you cant narrow down the source to worn suspension, bent wheel, or bad prop shaft.

HTH

 

[SyTyJedi]

Go to the discount tire in Colleyville when you are back in this part of town. Take me and my papa with you - they know how we like tires balanced. They will balance them for hours until they are perfect. I would maybe get an alignment as well.

How much air is in the front tires?

Does the vibration go away if you remove the front driveshaft?

 

[Ian Turgeon]

My truck wouldnt hold an alignment very long before we swaped out the bushings on the front end., took 2 sets of tires for me to see the trend.

vibration is most likely between the wheel balancing, and the propshaft

 

[InvisiBill]

FYI, I archived a couple of the balancing threads at http://syclone.invisibill.net if you want to check them out.