6L80 Rebuild Cost: Parts, Labor, HD Upgrades Breakdown

What does a 6L80 rebuild actually cost? Here is the line-by-line breakdown for stock, HD tow, and performance builds behind LS / Vortec V8s.

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Why 6L80 rebuild costs vary

  • Stock vs HD parts choice
  • Shop labor rate ($100-$180/hr regional)
  • Tuned vs stock engine
  • Truck duty (DD, tow, HP)
  • DIY vs shop labor

Stock 6L80 rebuild parts

Master rebuild kit:

  • Clutches + steels: $180-$280
  • Gasket and seal set: $50-$90
  • Sealing rings: $40-$70
  • Bushings: $50-$90
  • Filter: $20-$40
  • Total master kit: $340-$570

    • Replacement parts:

  • OEM solenoid pack: $300-$500
  • Pressure switches: $40-$80
  • Output speed sensor: $30-$60

    • Fluids:

  • Dexron VI (9 quarts): $80-$130

    • Torque converter (rebuilt):

  • $250-$500

    • Stock rebuild parts total: $1,040-$1,840

    HD tow rebuild parts

    Raybestos HD master kit:

  • $400-$650

    • HD upgrades:

  • HD 1-2-3-4 clutch pack (6L90 style): $150-$280
  • HD planetary: $300-$500
  • Sonnax stator support: $300-$450

    • Solenoids (OEM full pack):

  • $300-$500

    • HD torque converter (single-disc HD):

  • $500-$800

    • Fluid:

  • Dexron VI (9 qts): $80-$130

    • HD tow rebuild parts total: $1,730-$2,710

    HD performance rebuild parts

    Master kit (Raybestos):

  • $400-$650

    • HD upgrades:

  • HD 6L90 clutch packs (all): $400-$700
  • HD planetary set: $400-$700
  • Sonnax billet stator support: $400-$600
  • Sonnax valve body kit: $200-$350
  • Billet input shaft: $400-$700

    • Solenoids (HD):

  • $400-$700

    • Triple-disc converter:

  • $1,000-$1,800

    • HD line pressure tune:

  • $200-$400 (tuner cost)

    • Fluid:

  • $80-$130

    • HD performance parts total: $3,880-$6,330

    Shop labor breakdown

    Trans R&R:

  • 4-6 hours at $130/hr = $520-$780

    • Teardown:

  • 4-5 hours = $520-$650

    • Inspection / cleaning:

  • 2-3 hours = $260-$390

    • Reassembly:

  • 6-8 hours = $780-$1,040

    • Total labor:

  • 16-22 hours = $2,080-$2,860

    • Total shop rebuild cost

    Stock rebuild:

  • Parts: $1,040-$1,840
  • Labor: $2,080-$2,860
  • Total: $3,120-$4,700

    • HD tow rebuild:

  • Parts: $1,730-$2,710
  • Labor: $2,080-$2,860
  • Total: $3,810-$5,570

    • HD performance rebuild:

  • Parts: $3,880-$6,330
  • Labor: $2,080-$2,860
  • Total: $5,960-$9,190

    • DIY savings

    Save on labor:

  • $2,080-$2,860 if you do it yourself
  • BUT: 25-35 hours of careful work
  • Plus special tools (~$300 in tooling)

    • DIY rebuild realistic cost:

  • Stock: $1,040-$2,140 (with tool investment)
  • HD tow: $1,730-$3,010
  • HD performance: $3,880-$6,630

    • What can blow the budget

    • Cracked case (replace: $500-$900 + labor)
    • Damaged pump body (replace: $300-$600)
    • Worn output shaft splines (replace shaft: $300-$600)
    • Bad torque converter that contaminates fresh build
    • Mechatronic harness failure inside (rare)

    Saving money tips

    • Replace full solenoid pack (avoid future labor for individual)
    • Always do TCC service at rebuild (cheap)
    • Use rebuilt converter for stock truck (cheaper)
    • Get a Service Fast Learn after install (free, dramatic shift improvement)

    Non-negotiable for HD use

    • HD line pressure tune (no clutch lives without it on tuned trucks)
    • HD converter if towing 8k+
    • HD 1-2-3-4 clutch pack (most loaded pack)
    • Quality fluid (Dexron VI only)

    Compared to 6L80 replacement (rebuilt unit)

    Crate rebuilt 6L80:

  • $1,800-$3,500 unit cost
  • + $700-$1,200 install labor
  • + $250-$500 converter
  • Total: $2,750-$5,200
  • Faster than rebuild
  • Often with warranty

    • When to do rebuilt unit instead:

  • Limited time
  • Limited mechanical skill
  • Truck is needed back fast

    • Need 6L80 master rebuild kit, HD parts, or solenoid pack? Shop our 6L80 catalog. Master kits, HD upgrades, OEM solenoid packs, complete rebuild bundles. Free shipping over $70.

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