# Custom and Specialty Work, Scoped Before We Start

> Odd jobs, add-ons and hard-to-place problems, quoted with diagnosis as its own line so there are no surprises. Call or request a quote today.

Source: https://goodyearelitetireupland.com/services/custom-specialty-work/  
Last updated: 2026-09-22  
Business: Goodyear Elite Tire Upland, 1775 W Foothill Blvd, Upland, CA 91786, (909) 608-7699

**TL;DR:** For **custom and specialty work**, we quote **diagnosis as its own job**, write a clear scope and stopping point, and ask you to **call first** about customer-supplied parts.

Custom and specialty work covers jobs outside a standard menu: accessory installs, unusual vehicles, and problems another shop could not pin down. We start by quoting the diagnosis as its own job with a clear stopping point. After that you get a written repair estimate. If you plan to bring your own parts, ask first.

## What counts as custom or specialty work?

If a job is not a routine oil change, brake job or tire install, it probably lands here. Examples include accessory wiring, lighting add-ons, a hard-to-find electrical fault, an RV or motorhome system that needs a look, or a vehicle modification that changed how things fit.

Some modifications run into state rules, and it is cheaper to hear that before the parts arrive. California limits passenger vehicle exhaust noise to 95 decibels, requires the exhaust system to be in working order, and makes removing a catalytic converter illegal. We will not do work that puts your vehicle on the wrong side of those lines.

Not every specialty job is a fit for this shop either. Some need tools, parts or training that a dedicated specialist has. We would rather say so on the first call than halfway through. Describe the vehicle and what you want, and we will tell you honestly whether to bring it here. For [custom wheels](https://goodyearelitetireupland.com/tires/custom-wheels/), there is a separate page.

## Why do you quote diagnosis as a separate job?

Unusual problems take time to find, and that time is real work. Quoting diagnosis as its own line means you know what you are paying for before we start, and you decide whether to continue after we report.

### How the diagnosis step works

1. You describe the problem and what has already been tried.
2. We write the diagnosis scope: what we will test and where we will stop.
3. You approve the diagnosis line in writing.
4. We test and report findings with photos and notes.
5. You get a separate repair estimate, and you decide.

The diagnosis line never grows on its own. If we reach the stopping point without an answer, we call you with what we learned and what the next step would cost. See how this fits our [transparent pricing promise](https://goodyearelitetireupland.com/why-choose-us/transparent-pricing/).

## What does a scoped diagnosis look like in practice?

Take a motorhome whose dash air blows warm. An open-ended "find the problem" order can turn into a bill nobody expected. A scoped diagnosis avoids that.

A scoped version might read:

- **Scope:** check the dash AC system pressures, compressor engagement, visible leaks and fan operation.
- **Stop point:** report back before any panels are removed or any parts are replaced.
- **Not included:** the separate house or roof air units, which are a different system.
- **Result:** a written note of findings, photos, and a repair estimate or a referral if it is outside what we do.

Air conditioning is charged by weight, not by feel, and the refrigerant type and exact charge weight are printed on a label under the hood. That label also tells us which system we are dealing with: vehicles built through the mid-2010s mostly use R-134a and newer ones commonly use R-1234yf. The two are not interchangeable and they use different service fittings, so the label is the first thing the scope names.

You know the ceiling before we start. If the answer needs more digging, you get a call and a new written number first. Car and truck AC problems are covered on our [air conditioning service](https://goodyearelitetireupland.com/services/air-conditioning-service/) page.

## Can I bring my own parts?

Ask first. Please call before buying parts for us to install, and before bringing them in. Whether we can install a part you supply depends on the part, the job and the shop's current policy, and we would rather settle that on the phone.

Things we will talk through:

- **Fit and quality:** a wrong or low-grade part can turn a short job into a long one.
- **Labor on the install:** labor is quoted in writing either way, and it may differ from a job where we supply the part.
- **Coverage:** what happens if a supplied part fails, and who handles it.
- **Returns:** if the part is wrong, the return is between you and the seller.

A quick call saves a wasted trip and a disagreement at the counter.

## How do I get the most accurate quote on a specialty job?

Details make better quotes. When you call or send a [quote request](https://goodyearelitetireupland.com/contact/request-a-quote/), include:

- Year, make, model, engine, and any major modifications
- What you want done, or exactly what the problem does and when
- What has already been tried, and by whom
- Photos of the part, area or accessory if you have them
- Whether you already own parts for the job

We reply with next steps: a diagnosis quote, a repair estimate, a request to see the vehicle, or an honest "this is not a job for us."

## Can you check a lifted or leveled truck?

Yes, for the parts that matter for safety and tire wear: alignment angles, steering parts, tire size and load range, and brake and suspension condition. A lift or leveling kit changes geometry, and that change shows up first in tire wear and steering feel. Call to confirm before booking a custom truck parts install.

### What a lift and level check looks at

- **Alignment:** whether the angles can still be set within spec after the height change. Camber, caster and toe are measured in degrees, often to a hundredth of a degree, and the maker's allowed range prints beside your measured value on the alignment sheet. Most passenger vehicles are specified within about plus or minus 1 degree of camber and a fraction of a degree of toe. See [wheel alignment](https://goodyearelitetireupland.com/tires/wheel-alignment/).
- **Steering and suspension parts:** tie rods, ball joints, and shocks sized for the new height.
- **Wheel fitment:** bolt pattern is written as a count by millimeters, such as 5x114.3, with offset and center bore also in millimeters. A replacement wheel has to meet or beat the original load rating, which is stamped on the back of the wheel.
- **Tire fit:** rubbing at full lock, load range, and a speedometer that may read differently with larger tires.
- **Brake lines and ABS wiring:** enough slack for full suspension travel.
- **CV axles on 4WD trucks:** steeper angles can wear boots faster.
- **Fasteners:** lug nuts go on in a star pattern to a foot-pound figure specific to your vehicle, and anything that came off gets re-torqued after about 50 to 100 miles. TPMS valve nuts and cores are torqued in inch-pounds, not foot-pounds, so they need a different wrench.

### Common mistakes after a lift

| Mistake | What it causes |
|---|---|
| Skipping the alignment | Fast, uneven tire wear and pull |
| Oversized tires on the stock load range | Poor handling when loaded or towing |
| Stretched brake hoses | Risk of a hose failing at full droop |
| Ignoring a new vibration | Driveline angle problems that get worse |

We write down what we find, mark each item need or want, and quote the fix before any work.

## Needed now versus can wait

### Needed now
- Electrical fault that drains the battery or blows fuses
- Accessory wiring that is loose, chafed or overheating
- Modification that affects brakes, steering or tires
- AC failure on a vehicle used in summer heat for work

### Can wait
- Extra lighting or accessory add-ons
- Cosmetic trim fit and finish
- Upgrading a working part to a nicer one
- Tidying old wiring that works and is secured

## Our process

1. **Call and describe the job:** Tell us the vehicle, the goal or symptom, and what has been tried. We say whether it is a fit.
2. **Scope the diagnosis:** We write down what we will test, where we will stop, and the diagnosis line, before touching the vehicle.
3. **Approve and test:** After you approve the diagnosis line, we test within the scope and take photos and notes.
4. **Report and estimate:** You get findings and a separate written repair estimate, or a referral if it needs a specialist.
5. **Repair on approval:** Approved work only. New findings mean a call and a new written number first.
6. **Verify and walk through:** We test the result and show you what was done before you take the vehicle.

## What's included

- Honest fit check on the first call
- Diagnosis quoted as its own line
- Written scope with a clear stopping point
- Photos and notes of findings
- Separate written repair estimate
- Referral when a job needs a specialist
- Call-first policy on customer-supplied parts

## Frequently asked questions

### Why do I pay for diagnosis separately?

Because finding an unusual problem takes testing time, and you should know that cost before we start. The diagnosis line has a written scope and stopping point. After we report, you get a repair estimate and choose whether to go ahead.

### Can you look at the AC in my motorhome?

Call first and describe the unit. We can scope a diagnosis of the dash air system with a clear stopping point. The under-hood label names the refrigerant and the charge weight, and R-134a and R-1234yf systems need different fittings, so that label decides part of the answer. Roof or house air units are a different system and may need an RV specialist. We tell you on the phone which parts we can and cannot check.

### Will you install parts I bought online?

Please ask before buying or bringing them. It depends on the part and the job. We talk through fit, labor and what happens if the part fails, then put the labor in writing. A quick call avoids a wasted trip.

### What if you cannot find the problem?

We stop at the agreed point and call you with what we tested, what we ruled out and what the next step would cost. You decide whether to continue. The diagnosis line does not grow without your written approval.

### Do you do accessory installation?

Some, depending on the part and the vehicle. Lighting, wiring and similar add-ons are a call-first job, so we can check fit, power draw and whether it is work we handle. If it is not a fit for this shop, we say so before you buy parts or drive over.

## Related pages

- https://goodyearelitetireupland.com/contact/request-a-quote/
- https://goodyearelitetireupland.com/services/check-engine-light-diagnostics/
- https://goodyearelitetireupland.com/why-choose-us/transparent-pricing/
- https://goodyearelitetireupland.com/about/customer-types/outdoor-recreation/

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Call (909) 608-7699 or book at https://goodyearelitetireupland.com/contact/book-appointment/