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| Lee60821 New user Date registered: Jul 2019 Location: San Antonio, TX Vehicle(s): '85 280SL, 2015 G63, 2012 F-250 Posts: 4 | Dealer says install shim to repair toe on left rear, Sound correct to you? I recently purchased a 2015 G63 CPO. I have had it 2 months and have driven 2200 miles, current milage is 49K I requested all the service records at time of delivery. 12 miles before I took delivery they replaced tires and did a 4 wheel alignment. Went to dealer to pick up license plates, they were happy to put them on my vehicle when my service adviser noticed my left rear tire was wearing on the outside of the tire. Made an appointment for the following Monday. Service adviser calls me today says they did another alignment and the front right toe and the left rear toe was out of spec. They corrected the front toe but obviously no toe adjustment on the rear. Their solution is to install a shim to correct the rear toe. Does that sound like a good fix or a band aid. I have not hit anything or have had it off road and they expect me to pay for the repair. I will save that for another discussion if they don't get it resolved. I would appreciate any information any of you can shed on this. Thank you, PS. I love the G and have wanted one since I was 16 and saw my first one in 1985 in Germany. | ||
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| DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963  | RE: Dealer says install shim to repair toe on left rear, Sound correct to you? That's a new one for me. I can't remember it ever being mentioned here. | ||
| #240923 - in reply to #240921 |
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| Lee60821 New user Date registered: Jul 2019 Location: San Antonio, TX Vehicle(s): '85 280SL, 2015 G63, 2012 F-250 Posts: 4 | Re: Dealer says install shim to repair toe on left rear, Sound correct to you? Thanks Dutch. I am just wondering if it is the correct way to fix the toe problem. I am thinking the shim may be covering up a bent component since there is not an adjustment for toe on the rear axle. If it didn't come from Graz with shims then why does it need it now? | ||
| #240924 - in reply to #240923 |
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| DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963 | Re: Dealer says install shim to repair toe on left rear, Sound correct to you? Agreed. It's a rigid solid axle. Not sure how a shim would affect one side without affecting the other. I think I would get a second opinion from someone like Collie on the Left Coast or Wolfgang's in NJ. They are both experts when it comes to G service, and one or the other could probably tell you if they have even heard of such service. | ||
| #240925 - in reply to #240924 |
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| Lee60821 New user Date registered: Jul 2019 Location: San Antonio, TX Vehicle(s): '85 280SL, 2015 G63, 2012 F-250 Posts: 4 | Re: Dealer says install shim to repair toe on left rear, Sound correct to you? Great information. I really appreciate it very much!! | ||
| #240926 - in reply to #240921 |
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| ewalberg Expert Date registered: Apr 2006 Location: Past: San Francisco. Present: Germany Vehicle(s): 2000 g500 Posts: 1887  | Re: Dealer says install shim to repair toe on left rear, Sound correct to you? I did it years ago on my truck because the rear axle was pointing a little to one direction. The rear wheels were aligned well to each other and positioned correctly left to right, it was the whole axle that was slightly skewed as if the trailing arm mounts were exactly equally front to back. It's believable. It's a pretty basic geometry question to figure out if it'll help and how much you need. If you just look at the rear axles relationship (left to right rear tire) there shouldn't be much toe. They should be close to parallel. For example, if you have quite a bit of toe-in one side and a tiny bit of toe-out on the other, the total toe on the axle might be well in spec and a shim correction warranted. There is a spec for total toe on the rear axel. However, if you're going to use shims, you should really use two shims. One larger shim fits onto the smooth shank of the trailing arm to offset the bushings. Then the second one should be equal thickness but it fits onto the threaded part of the shank, and should be equal in diameter to the smooth shank, it's job is to space out the nut so that the bushing have the same amount of compression that they originally had. I got the effect I intended. Now my axle points straight ahead. I think my shims were around 0.2-0.3 inches... I don't recall now. If you don't add the second little shim you only get half the position change relative to the thickness (if only a single shim is used) and then you are unnecessarily cranking up the preload on the bushings. Edited by ewalberg 8/23/2019 5:28 PM | ||
| #240928 - in reply to #240921 |
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| Lee60821 New user Date registered: Jul 2019 Location: San Antonio, TX Vehicle(s): '85 280SL, 2015 G63, 2012 F-250 Posts: 4 | Re: Dealer says install shim to repair toe on left rear, Sound correct to you? Thank you ewalberg, that is quite informative. My concern is this truck was just purchased CPO and I plan on having it a long time. If they get the shims right will there be any ill effects long term. I am wondering how a CPO truck has a skewed axle and did I get what I paid for. Thanks | ||
| #240929 - in reply to #240921 |
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| ewalberg Expert Date registered: Apr 2006 Location: Past: San Francisco. Present: Germany Vehicle(s): 2000 g500 Posts: 1887 | Re: Dealer says install shim to repair toe on left rear, Sound correct to you? I just corrected some editing errors above (since I was on my phone). I don't know what to say... on one side I'd say the dealer's service advisor (probably not who did the CPO certification) seems pretty honest in identifying something asap. However, I agree with the above statement that it's worth getting a second opinion. If you're just dealing with the manufacturing tolerances of a 40-year-old suspension design which has wiggled it's way out of spec after some miles and use... There's no reason that correctly installed shim set can't solve the problem, but it's certainly worth doing a tiny bit more footwork to make sure nothings actually bent. If you can find a G-specialist that's ideal. In the end, any solid axle specialist (jeeps mechanics, old Land Cruisers / Defenders) should also be able to check it out, although they may be so used to peoples waked out super modified jeeps, that they're not sensitive to "minor" deviations, if all you actually have is a minor deviation. Edited by ewalberg 8/23/2019 5:37 PM | ||
| #240931 - in reply to #240921 |
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