Any good write ups/tips for replacing a 4.0? - : Jeep Wrangler JK Forum
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post #1 of 3 Old 11-06-2012, 06:09 AM Thread Starter
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Any good write ups/tips for replacing a 4.0?

I've probably pulled 100+ engines over the years, but mostly in old muscle cars, never pulled a 4.0 out of a TJ. I'm sure it's not rocket science, but if any one knows a a good write up or has any tips to make it go easier/quicker, that would be greatly appreciated!


2007 Unlimited
40 Toyo Open Countrys on Workz Rims
OrFab Rear Bumper, Smittybilt Front
Cree Light Bar
7.5 Long Arm Lift
Synergy Front Suspension
Artec Front JK Armor
Tom Woods Drive Shafts
Hi-Lift & Much More
2000 TJ
6" lift
37 TOYO MT's on Worx Rims
$hitty Built bumpers
Air Raid
Bushwhacker Flairs & Trail Armour
Corbeau Baja RS seats
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post #2 of 3 Old 11-25-2012, 04:31 AM
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They are not hard at all. It's straight forward. I see allot of people want to leave the trans in place on the skid plate but I like to remove the trans and t case and get them out of the way. with 6" of lift you will want to take the air out of the tires to save your back as well
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post #3 of 3 Old 11-25-2012, 07:29 PM
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get a good TDC and mark the cam sensor (distributor) before pulling. HAS to go back correctly.

that 4.0 is heavier than you think.

AOR is right, it's easier to pull everything out. Easier putting it all back in as well.

2010 JKU Sport
[X] 2.5 lift kit
[X] Bilstein Shocks
[X] 35" MT/R's
[X] 6K HID headlights
[X] 6K HID windshield lights in Hella 500's
[X] Beauty marks after owning it for 5 days!!!
[X] XRC front bumper
[X] XRC rear bumper w/ tire swing
[X] Dremel styled fender flares
[X] CB
[X] PJ sliders with steps
[X] Wife with a Jeep as well

Last edited by ed-d97; 11-25-2012 at 07:34 PM.
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