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General Forums => The Mess Hall => Topic started by: donut on February 25, 2008, 09:35:12 AM

Title: Argh!! 4.0L TB swap HELP!
Post by: donut on February 25, 2008, 09:35:12 AM
 :guns:

i was reading the posts on the 4.0L TB swap, but im still a little confused.  ive read the post like, 4-5 times, but im still stumped- Marines arent known for their smartness.  ive got a 95 YJ.  should i get a TB from a 91-95/96 4.0?  i just want to get my research correct so i can just jump into all the mods when i get home. 
Title: Re: Argh!! 4.0L TB swap HELP!
Post by: Jeffy on February 25, 2008, 11:32:57 AM
Your 95 should be fine with a 1991-1995.5 TB.  Unless they used a TJ TB on there.  You will need to check where the MAP sensor is located to be sure.
Title: Re: Argh!! 4.0L TB swap HELP!
Post by: Bounty Hunter on February 25, 2008, 03:18:21 PM
You can use a '91-'04 throttle body, but if it's a '95.5+ throttle body you will have to cap the vacuum port at the base of the throttle body.  No big deal.

My '95 came with the '95.5+ throttle body with the vacuum port capped from the factory.

BTW I sell 62mm throttle bodies for $85 + a refundable core charge.  Much larger, more power, and quicker throttle response than any 4.0L throttle body.  Removing the stock taper beneath the throttle plate gets air past the throttle plate a lot sooner.
Title: Re: Argh!! 4.0L TB swap HELP!
Post by: donut on February 27, 2008, 08:00:28 AM
 :guns:
Thanks, for all the info!  and head hunter- i might be calling you once i get back to the good 'ol states!  do you take a 4.0L core, or the 2.5L TB core?