New tyres and wheel alignment - car doesn't drive straight

[smyz250]

Hi all,

Hoping for some wheel alignment / tyre help here.

Backstory
---------
2016 GU Y61 Legend Edition Patrol, 55,500k's on original Bridgestone D693 AT with no issues. At approx 20,000k's upgraded to OME 2" lift with castor kit and wheel alignment. Patrol drives straight (hands off the wheel) and steering wheel is centered - as it has done from new, tyres rotated every 10,000k's. No issues, until today.

Today
-----
Take Patrol in to get 5 new tyres (the spare had been rotated out as it has been plugged). Bridgestone D697 LT in same size as originals (275/65R17), wheel alignment done as suggested. However, after picking up the patrol, it pulls badly to the left (hands off the wheel pulls straight away - within meters) and I have to hold the steering wheel consistently to the right (way off center) just to stay on the road.
I immediately take it back, they 'check' it again, say its fine. I drive out - no difference. I take it back, convince them to take a ride and see what it's doing, they do and realise how bad it is. They have another go, and swap front wheels (left to right), it's a bit better, but still pulls a little to the left, and steering wheel is way right hand down off center. At this stage they suggest I go to their sister shop (next suburb over) and they'll have a go.

2 attempts there and the end result is that it still pulls to the left, but not as bad, and wheel is nearly centered (acceptable but not perfect) - but still pulling left. Not just a drift or slow veer, but pulling.

Here are the specs they gave me as the day progressed (times indicate progression). It seems all over the shop to me - any ideas?

alignment_1.jpg

alignment_2.jpg

This last one was a different machine and shows as a Y62 with independent suspension - no idea what to make of that?

alignment_3.jpg

The end result was they said that was all they could do, cya.

Any help appreciated. I just want my Patrol to drive like it did this-morning!

Cheers,
Shane

[Brissieboy]

After dealing with a proper suspension shop, I will never have an alignment done at a basic tyre shop.
Professional suspension shops have their gear calibrated daily, where your tyre shop probably does in weekly (at best).
Professional suspension shops know what to do when the suspension is not standard (such as your lift) while your tyre shop probably does not.
Professional suspension shops have the knowledge and can do what is required to correct a problem rather than just try to hide it.
It may cost more initially, but you just might be better off in the long run.

[Dhuck]

First things first, I do not look at what vehicle is chosen from the data base provided by the machine manufacturer. First report even as Y62 0.9mm of toe nice, camber relatively even and no caster reading. The second reading as a Y61. Am guessing that it is the same machine later in the day. 5.1mm of toe is very excessive, camber typical of a live axle and caster relatively even. Heavy positive or negative toe will make it drive like crap. The caster in that report indicates that it will follow the camber of the road. Then the third report, I don't care that it says it's a Y62. Like I said, it doesn't matter what vehicle is selected, it comes down to the figures. The before part of this report the figures are reasonable. However the current part of this report, camber OK, caster even (again will follow the camber of the road). But this is what has me tripping out at what they have done. -6.2mm of toe is f#$%ing ridiculous. Race cars run negative toe but not that much. Read your pm that I have sent you mate.

[Cuppa]

I think you should expect your money back . If it were me I would be making that firmly but politely clear to whoever is in charge & telling them that both a) it was fine before they adjusted it & b) you will be taking it to a specialist wheel alignment place to rectify what they have done. If they suggest having another go I would refuse on the basis that they had plenty of opportunity to get it right & told you they could do no more. Any further attempt will just be more of the same.

Actually I think that the people who told you your well handling vehicle needed a wheel alignment & then turned it into an ill handling vehicle should be responsible for the cost of getting it rectified elsewhere, but that might be a harder road to follow.

[smyz250]

I think you should expect your money back . If it were me I would be making that firmly but politely clear to whoever is in charge & telling them that both a) it was fine before they adjusted it & b) you will be taking it to a specialist wheel alignment place to rectify what they have done. If they suggest having another go I would refuse on the basis that they had plenty of opportunity to get it right & told you they could do no more. Any further attempt will just be more of the same.

Actually I think that the people who told you your well handling vehicle needed a wheel alignment & then turned it into an ill handling vehicle should be responsible for the cost of getting it rectified elsewhere, but that might be a harder road to follow.

There was no charge in the end for the alignment - just paid for the tyres. Although I'm thinking of hitting them up to replace at least the front tyres and set back to within spec alignment and see if it's the tyres.

[Arfa Brayne]

OK = basics.
Y61 is a front beam axle, so other than toe in, there is no other adjustment done for a wheel alignment. (Unless you change castor bushes or add drop boxes etc, the only way to adjust the caster and camber is to BEND the diff housing.)
Y62 is independent front end. so yeah, you can adjust more than the toe in, which is why they used those figures on your fudged "alignment"

So if you have a Y61 and they claim to have changed the caster or camber angles, you have documented proof of absolute bull$h!t.

Here's what I reckon has happened based on previous experience in the tyre and alignment game.

- 1 The original Bridgestone tyres were made in Japan and of really good quality - but your Bridgie replacements are crap made in any of half a dozen cheap labour countries with poor standards. ........ Poorly made tyres need lots of balance weights, and if not cast and cured properly will PULL/Drag unevenly as well as give you higher fuel consumption. (bet you've got a wad of weights on every wheel totaling more than 35g per wheel)
The standard "cure" (sleaze out) is to put pulling tyres on the rear axle (which your blokes have done) - except the rear tyres that went on the front were shoddy too. This "cure" is what you do for cheap retreads, not new quality tyres.

-2 You cannot alter the caster and camber to change "pull" (on Y61), but you can adjust the "return to centre" damper and spring position on the track rod.
This will place spring tension on your steering to push it against the pull of your dodgy tyres.......... however without changing the steering wheel spline, your steering wheel will now be off centre. Also the spring is a fixed load, where the pull of the tyres will vary depending on road surface, vehicle load and tyre pressure. SO result is it will be all over the place and handle like a blind brumby.

The cure. = Find out where your tyres are made. Yokohama, Toyo, some Dunlop, still make tyres in Japan and stamp "made in Japan" on the sidewalls. If there is nothing stamped on the sidewalls regarding place of manufacture you can usually assume they are poor quality.
Try a set of a mates tyres on your rig if possible.
Last set of Bridgies I put on my Patrol only lasted a month before I resold them to a young hoon for a third the price I bought them. Utter crap.
I've sworn by Bridgestone for 40 years = fitted to every vehicle I've owned, always top quality. Never questioned the choice. .... Until the last set I bought (and will ever by) caused me to research what the hell went wrong.

Bet you buttons to billions it's the tyres.
If possible, get a written opinion from a reputable tyre/alignment shop and see if you can get a refund for your tyre purchase or a trade in on a better set of tyres.
Never do business with the original tyre shop again, and make sure you tell everyone your story.
I took pride in doing a good value job and looking after customers - business was very successful. I deeply loath dodgy operators - they place cash above safety and ethics.

[smyz250]

OK = basics.

Last set of Bridgies I put on my Patrol only lasted a month before I resold them to a young hoon for a third the price I bought them. Utter crap.
I've sworn by Bridgestone for 40 years = fitted to every vehicle I've owned, always top quality. Never questioned the choice. .... Until the last set I bought (and will ever by) caused me to research what the hell went wrong.

Bet you buttons to billions it's the tyres.
If possible, get a written opinion from a reputable tyre/alignment shop and see if you can get a refund for your tyre purchase or a trade in on a better set of tyres.

This is my 4th set of D697s (2 sets on a prado, 1 set on a hilux and now the patrol). Never had an issue before so stuck with them.

[smyz250]

So if you have a Y61 and they claim to have changed the caster or camber angles, you have documented proof of absolute bull$h!t.

The manager did say there is only 1 adjustment they can make, and that's all they can do without adding a drag link(?) to give it more adjustment. My counter argument was if it drove straight this-morning, and it's not the alignment it must be the tyres - there answer, it's not the tyres as they are brand new, maybe your old tyres were worn and now with new 'flat' tyres they are not compensating for the suspension. And we went around in circles on that point.

Thing was, the old D693's wore even and had zero scrubbing inside or out on any of the 5. They still had about 3mm left but started to get a bit squirrely in the recent rain, hence replacing.

[jack]

FWIW for the last 40+ years I’ve always taken my cars to a specialist wheel alignment/suspension shop. That’s all he does and has ever done. Never had an issue, I always rotate all five tyres and whenever I get a new set I tell them who will be doing the wheel alignment.
He’s always inquiring what you intend to use the car for and will tweak the alignment to suit the driving conditions (highway or outback).

Sorry this isn’t much help to you as he’s in Ballarat, I’m sure he’d be happy to discuss your issues if you wanted to ring him.

https://www.trulinesteering.com.au/

[Arfa Brayne]

FWIW for the last 40+ years I’ve always taken my cars to a specialist wheel alignment/suspension shop. That’s all he does and has ever done. Never had an issue, I always rotate all five tyres and whenever I get a new set I tell them who will be doing the wheel alignment.
He’s always inquiring what you intend to use the car for and will tweak the alignment to suit the driving conditions (highway or outback).

Sorry this isn’t much help to you as he’s in Ballarat, I’m sure he’d be happy to discuss your issues if you wanted to ring him.

https://www.trulinesteering.com.au/

Yeah - a smaller town bloke has something important to protect = his reputation.
It takes years to build a good rep, and only a few mistakes to destroy it and your business in a small town. In the city there are countless fresh victims and suckers.
To be in business for 40 years in a small regional centre shows the right stuff.

For 4x4's it's a good idea to have a set of 6x tyres and wheels. That way, fronts go to rear, rears go to spare/shed, and the 2x spares (which have the most tread) go to the front. With a good alignment, good tyres and reasonable driving style, you'll get 80,000km out of a set with the added bonus of being able to damage 2x tyres beyond repair without needing a mismatched new tyre in the set. Even good tyres can pull when mismatched.
As tyres age they harden, and the compound changes grip and wear characteristics.