Anchorage, Alaska • Verified Service Offering

Heavy-Duty Transmission Service in Anchorage, AK

Fluid flushes, valve body calibrations, torque converter upgrades, and heavy-duty transmission replacement. Diamond Truck Service provides expert diagnosis, genuine replacement parts, and master-technician craftsmanship at 458 W Dimond Blvd in South Anchorage.

Request Heavy-Duty Transmission Service Call Shop: (907) 947-9672

Common Symptoms & Warning Signs

If your diesel truck exhibits any of the following warning signs, early evaluation prevents minor sensor or seal issues from escalating into major component failure:

!Delayed or harsh shift engagement when shifting into Drive or Reverse

!Transmission slip or engine rev flare between gear changes

!High transmission fluid temperatures when towing up highway grades

!Dark burnt transmission fluid or fluid leak from bellhousing

Verified Shop Capabilities & Equipment

At Diamond Truck Service, we don't outsource critical mechanical work. All services are performed in our South Anchorage bays using calibrated diagnostic tools:

Allison 1000/2000 series, Ford 5R110/6R140/10R140, and Chrysler 48RE/68RFE/Aisin
Heavy-duty billet triple-disc torque converter installations
Valve body upgrades, shift kits, and solenoid pack replacements
High-capacity auxiliary transmission coolers for Alaska towing
Complete transmission overhaul and replacement with warranty

Our Diagnostic & Repair Workflow

Step 01

Fluid & Scan Analysis

Check clutch slip times, line pressures, and transmission trouble codes.

Step 02

Pan Drop Inspection

Examine pan magnet for clutch friction material and metal brass flakes.

Step 03

Precision Repair / Rebuild

Rebuild internal clutch packs or install upgraded reman assembly.

Step 04

Fluid Level Calibration

Fill with synthetic ATF and calibrate adaptive shift tables.

Heavy-Duty Transmission Service FAQs

Can you build my transmission to handle extra horsepower and heavy hauling?

Yes! As demonstrated on our flagship Fummins build, we build transmissions with upgraded billet shafts, heavy-duty clutch packs, and triple-disc converters engineered for high-torque loads.

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