How to LS swap a Jeep TJ: parts list and steps

Jeep Wrangler TJ / LJ (1997–2006) LS swap: parts and gotchas from our sourced guides.

1997–2006 Jeep TJ/LJ Wrangler LS swap with Novak kits in three tiers (Foundation/Essential/Complete) for 4L60E automatic or AX15 manual.

Swap kit: Novak KIT-LS-TJ-A-1 TJ LS kit, 4L60E, Foundation (5 parts) ($1,343); Novak KIT-LS-TJ-M-1 TJ LS kit, AX15 manual, Foundation (15 parts) ($2,913); Novak KIT-LS-TJ-A-2 TJ LS kit, 4L60E, Essential (18 parts) ($3,993) (optional); Novak KIT-LS-TJ-A-3 TJ LS kit, 4L60E, Complete (23 parts) ($4,723) (optional); Novak KIT-LS-TJ-M-2 TJ LS kit, AX15, Essential (25 parts) ($5,291) (optional); Novak KIT-LS-TJ-M-3 TJ LS kit, AX15, Complete (31 parts) ($8,170) (optional)

Watch out for: Foundation tier covers engine mounts, transmission adapter and structural hardware; higher tiers add cooling, wiring, fuel etc. Commonly needed parts are listed separately from the discount kits.

See our engine, oil pan, transmission and wiring guides for choosing the rest of the combination.