Expert Chevrolet Silverado 1500 transmission service in Chicago. Free computer diagnostic, 2-year / 24,000-mile warranty on rebuilds, all years.
We will contact you as soon as a service member is available by call, text, or email.
1999 - 2006: 4L60E 4-speed automatic (most engines) or 4L80E (heavy-duty option with 6.0L) 2006 - 2013: 6L80 6-speed automatic - introduced with 5.3L and 6.0L 2014 - 2019: 6L80 continued; 8L90 introduced in 2015 for EcoTec3 5.3L and 6.2L 2020+: 8L90 standard; 10L80 10-speed introduced
4L60E sun shell failure always requires a full rebuild - plan $1,500 - 2,000. We use hardened aftermarket sun shells to prevent recurrence. 6L80 pump wear: rebuild required ($1,900 - 2,500) - pump-only replacement isn't reliable once the pump has worn significantly. 8L90 TCC shudder: Dexron HP fluid exchange first ($149), then torque converter assessment.
4L60E: Dexron VI 6L80: Dexron VI 8L90: Dexron HP (critical - standard Dexron VI causes TCC shudder in 8L90)
Fluid service: same day. Full rebuild: 3 - 4 business days.
Fluid service and inspection complete the same day. Solenoid or sensor replacement: 1 day. Torque converter or seal repair: 2 - 3 days. Full rebuild with road test: 4 - 6 days. Time estimates assume parts in stock - call (312) 626-8759 to verify availability for your specific vehicle.
Every vehicle needs diagnosis before anyone can promise a repair path. These are the situations we help organize before you decide what to do next.
Tell us when it happens, whether reverse still works, and if warning lights are on. A scan and fluid check come before guessing at a rebuild.
Fluid condition, leak location, and driving distance matter. If the vehicle is slipping badly or overheating, towing may be the safer next step.
A failed solenoid, valve body, converter, or internal clutch problem can lead to very different repair paths. The goal is a clear diagnosis and written estimate.
That's a 4L60E sun shell failure - it's catastrophic and requires a full rebuild. Call us for a tow. Plan for $1,500 - 2,000 for the rebuild with an upgraded hardened sun shell.
Classic 6L80 pump wear. As the pump wears, it builds less pressure when hot (thinner fluid). Rebuild is required - $1,900 - 2,500. Don't delay; a failed pump causes complete transmission failure.
Yes - TCC shudder is very common on 2015 - 2019 Silverado with 8L90. Start with a Dexron HP fluid exchange. If shudder persists, torque converter replacement ($600 - 900 installed).
For a standard 1500 without heavy tow use, a rebuilt 4L60E with a hardened sun shell is the right repair at $1,500 - 2,000. A swap to 6L80 requires computer changes and costs significantly more.
Yes - we use upgraded friction clutch packs and heavy-duty solenoid bodies for builds going into lifted trucks with power mods.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
