Field notes

Field notes for transmission shops

Diagnosis sequences, unit-specific failure points and the shop economics behind them, written for the people who do the work.

RSS feed

Shop software · Sep 23, 2026 · 11 min read

How to choose the best transmission shop software

No single product is the best transmission shop software, because a transmission shop buys software for a different job than a general repair shop: the unit is the object of the work, the failure has to be proven before the unit comes out, and a comeback costs the whole repair. Judge products on diagnosis tracking, unit and core handling, rebuild labor, and whether the invoice can be blocked until verification passes — then compare price. Below are the criteria, the tests to run in a demo, and what Tekmetric, Shopmonkey, Shop-Ware, Mitchell 1, AutoLeap, ARI and BayStacker charge as of September 2026.

Read the guide See transmission shop software

Rebuilding · Sep 23, 2026 · 10 min read
4L60E rebuild: the hard parts that fail, what a kit includes, and what to upgrade
The 4L60E is the most-rebuilt automatic in North America, and its failure list is short and well documented: the 3-4 clutch pack, the reaction (sun) shell, the pump and boost valve, and the servo and accumulator seals. A rebuild that replaces soft parts only will come back, because the leaks that burned the 3-4 clutch are in the pump, the servo and the input drum. This is what to inspect, what a kit actually contains, which upgrades earn their cost, and what the labor is.
Read
Rebuilding · Sep 23, 2026 · 10 min read
68RFE transmission problems: what fails first, and what a rebuild has to fix
The 68RFE is Chrysler’s six-speed automatic for the Ram 2500 and 3500 with the 6.7L Cummins, introduced in 2007 and still in service in large numbers. It fails in a known order: the overdrive clutch pack first, then the valve body’s solenoid switch valve bore and separator plate, then the converter and the cooling circuit. Almost every failure ends up as a pressure problem, which is why the first useful test is not a parts cannon — it is a pressure and code check on a unit you have actually driven.
Read
Shop software · Sep 23, 2026 · 10 min read
Auto repair estimate software: what it has to do
Auto repair estimate software builds a priced, itemized repair quote from a decoded VIN, a labor guide and a parts catalog, then records the customer’s authorization to do the work. On a transmission job the estimate cannot be final at the counter, because the real scope is inside the unit — so the software has to support staged approval: teardown, repair, and the additional authorization for what the teardown found. If a tool can only produce one number and one signature, it will fail on exactly the jobs that pay your bills.
Read
Shop software · Sep 23, 2026 · 9 min read
Auto repair invoice software: what the invoice has to contain
Auto repair invoice software turns an approved repair order into an itemized bill: services and parts listed separately with a price for each, a labor subtotal, a parts subtotal, tax and a total — plus the disclosure fields your state requires. The part that separates real shop software from a generic invoicing app is what happens around it: recording additional authorization, keeping the warranty terms on the record, taking a payment without charging the customer twice, and getting a clean file to the bookkeeper.
Read
Shop software · Sep 23, 2026 · 9 min read
Digital vehicle inspection software: evidence, not a checklist
Digital vehicle inspection software replaces the paper clipboard with a phone or tablet form that captures photos, video and technician notes and sends them to the customer for review and approval. Its value is evidence: a marked-up photo and a recorded measurement are what a customer approves and what a warranty claim is defended with. For transmission work it has to go past a generic checklist to fluid condition, pan magnet debris, codes and freeze frame, line pressure, converter slip and road-test notes — and it has to report a measurement nobody took as missing, never as a guess.
Read
Shop software · Sep 23, 2026 · 9 min read
Free auto repair shop software: what is actually free in 2026
Free auto repair shop software exists, but “free” in this market means one of three different things: an always-free tier with hard caps, a time-limited trial, or a $0 add-on that requires a paid subscription behind it. As of September 2026 the tools with a genuine free tier are Moto6 (10 invoices a month), Hibbitts Auto Pro (one user, unlimited invoices) and ARI (five documents). Free works for a one-person shop doing a handful of jobs a week; it stops working the moment a second person needs a login or you want parts pricing from a catalog.
Read
Diagnosis · Sep 23, 2026 · 8 min read
P0700 code: what it means and how to diagnose it
P0700 means the transmission control module has stored a fault and asked the engine module to turn on the check engine light. The code does not name a part: the answer is in the companion code stored in the TCM, which only a scan tool that reads transmission enhanced data can show you. Pull every module, capture freeze frame, then work the companion code with live data, bidirectional tests and a pressure check before anything comes apart.
Read
Diagnosis · Sep 23, 2026 · 9 min read
P0741 code: torque converter clutch performance or stuck off
P0741 is a performance code: the TCM commanded the torque converter clutch to apply and the measured slip stayed too high, so lockup never happened or slipped once it did. The fault is hydraulic or mechanical far more often than it is the solenoid alone, and the usual culprit on high-mileage units is wear in the TCC regulator or apply bore in the valve body. Prove it with commanded against actual slip on a warm road test, then a pressure or vacuum test of that circuit before the unit comes out.
Read
Shop software · Sep 23, 2026 · 8 min read
Shopmonkey pricing: what each plan costs in September 2026
Shopmonkey publishes four tiers: Basic at $239 per month ($215 per month billed annually), Clever at $399 ($359 annual), Genius at $499 ($449 annual), and Multi-Shop at custom pricing. Basic includes 3 user licenses, Clever 4 and Genius 5, with each additional user at $20 per month. Paired add-ons — CRM Essentials, Accounting, Bookkeeping and a custom-priced Heavy Duty package — plus a one-time $500 data migration fee are where the total drifts from the plan price.
Read
Shop software · Sep 23, 2026 · 11 min read
Tekmetric alternatives: why shops switch, and what they switch to
Shops look past Tekmetric for specific reasons rather than general ones: add-ons that stack per shop, parts and shipped-sale workflows that take extra steps, digital inspections some users find thin, heavy-duty work it is not built around, and support that some shops found slow during urgent problems. The alternatives most often named are Shopmonkey, Shop-Ware, AutoLeap, Mitchell 1 Manager SE, ARI and BOLT ON Technology, and this post gives each one published September 2026 pricing plus the tests that matter before you migrate.
Read
Shop software · Sep 23, 2026 · 8 min read
Tekmetric pricing: what each plan costs in September 2026
Tekmetric publishes four tiers: Start at $199 per month ($179 per month on the annual plan), Grow at $349 ($309 annual), Scale at $439 ($409 annual), and Enterprise at custom pricing. Every tier includes unlimited users and unlimited repair orders, and Tekmetric states there are no long-term contracts. Add-ons — multi-shop, tire suite, marketing and payments — are priced per shop on top of a plan, and they are where a quote stops matching the pricing page.
Read
Diagnosis · Sep 23, 2026 · 8 min read
Torque converter shudder: how to confirm it and fix it once
Torque converter shudder is the stick-slip of the converter clutch at low slip speed, felt as a shake between roughly 25 and 80 mph at steady light throttle that is often described as driving over rumble strips. Confirm it by commanding the clutch off and back on during a road test and watching slip: if the vibration disappears with the clutch disabled or locked, it is the clutch, and if slip repeats around 60 rpm the fix is usually a fluid exchange. If slip swings erratically from zero to over 100 rpm, the converter lining is damaged and the converter comes out.
Read
Diagnosis · Sep 23, 2026 · 9 min read
Transmission diagnosis: the sequence that survives a comeback
A transmission diagnosis is a fixed sequence: verify the complaint, identify the unit, check fluid, scan every module, road test with data, test line pressure, run a stall test only if pressure is good, test the electrical circuits, vacuum or pressure test the hydraulics, inspect the pan, and only then decide whether the unit comes out. Each step rules something out and produces a number worth writing down. The shops that avoid comebacks are the ones where the next person to touch the vehicle can see why the decision was made.
Read
Rebuilding · Sep 23, 2026 · 11 min read
Transmission rebuild vs replace: what each costs, what each warranty actually covers
Rebuilding your own unit is the cheapest installed option and the remanufactured unit is the one with a real nationwide warranty; a used unit is cheaper still and carries the shortest coverage of the four. Published 2026 ranges put a local rebuild at about $2,800-$5,200 installed, a remanufactured unit at $3,800-$6,500, a used unit at $1,800-$3,400, and a new OEM unit from a dealer at $6,000-$10,000. The warranty and the core terms, not the headline price, are what decide which of those you should be selling or buying.
Read
Shop economics · Sep 23, 2026 · 9 min read
Transmission repair cost: what each repair costs, and how to present the estimate
The same symptom can cost $150 or $10,000 depending on which layer of the transmission failed, and published 2026 ranges make that concrete: a fluid service runs $150-$400, a shift solenoid $200-$400, a valve body $850-$1,900 at an independent shop, a local rebuild $2,800-$5,200, and a dealer replacement $6,000-$10,000. The repair is only defensible when the price is attached to a diagnosis — pressure readings and code data, not a test drive. This is the cost map, what drives it, and how a shop should quote the work so that both the customer and the invoice agree.
Read
Diagnosis · Sep 23, 2026 · 10 min read
Transmission slipping: what it means and how to find the cause
A slipping transmission is one where the engine speed rises without a matching rise in vehicle speed, or where a shift takes far too long to complete. Fluid level and condition come first because low or degraded fluid is the most common and cheapest cause, then line pressure and a stall test to find out whether the unit can hold what it applies. If pressure is correct and a specific gear still slips, the wear is inside and the next step is removal, with a repair bill that ranges from a fluid service to a rebuild.
Read