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79 series automatic conversion cost

Thinking of giving your 79 Series the gift of two-pedal serenity? A quality new auto conversion (commonly a 6-speed kit, fitted and tuned) typically lands around AUD $20,000–$35,000, with big-ticket extras like transfer case work, GVM upgrades, or fancy controllers nudging it past $40k.

Hunting a used or reconditioned setup can trim the bill to roughly $12,000–$20,000, but availability is patchy and warranties can be slimmer than a servo pie at midnight.

Add a bit more for the boring-but-important stuff: transmission cooler, dyno time, and engineering/ADR sign-off—another $1,000–$4,000 isn’t unusual, plus a week off the road.

Pick a shop that’s done dozens, not just watched a highlights reel—your driveline (and sanity) will thank you.

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