Download HOW TO: Fully Rollerize a 4L80E video & save it for offline view


Not just the output! Also Reaction Carrier! Direct Drum! Forward Hub!

Also internally dual-feed the Direct piston, add a sixth Direct clutch, some valve body changes, including an Over-Run Clutch valve!

Articles I used:

Improve Your 400 and 4L80 Rebuilds

Websites I used:

That Shop Teacher Guy

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