Building my first jeep
what kind of axles are you running? and you should consider long arms if doing 4.5". you'll break stuff if you have stock axles and gearing and control arms. if you are just getting into this stuff, I recommend a rubicon express 3.5" lift and 31s. 33s possibly depending on what axles and gearing you have
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Joined: Feb 2011
Posts: 14,479
Likes: 805
From: Blunt, South Dakota
Year: 97
Model: Cherokee (XJ)
Engine: 4.6 stroker
After reading this, I feel the need to interject.
You just got it. What you should be doing to your "bone stock" ride, is getting it into top mechanical shape. Do all fluid changes, tune up, replace belt and hoses, make sure steering/suspension/brakes/driveline is good to go...deal with any wiring issues, etc...
Start with a solid base. Then figure out what you want your rig to do. What kind of wheeling will it see? Build accordingly. Start with armor and recovery first...then move on to your lift, tires, gears and lockers, shocks, SYE, and then concentrate on power/engine upgrades...
It all adds up quickly...what you're talking about doing, I have done most of it...it's taken me YEARS. It has taken effort. And, it has taken $$$.
Just one guy's advice.
You just got it. What you should be doing to your "bone stock" ride, is getting it into top mechanical shape. Do all fluid changes, tune up, replace belt and hoses, make sure steering/suspension/brakes/driveline is good to go...deal with any wiring issues, etc...
Start with a solid base. Then figure out what you want your rig to do. What kind of wheeling will it see? Build accordingly. Start with armor and recovery first...then move on to your lift, tires, gears and lockers, shocks, SYE, and then concentrate on power/engine upgrades...
It all adds up quickly...what you're talking about doing, I have done most of it...it's taken me YEARS. It has taken effort. And, it has taken $$$.
Just one guy's advice.
CF Veteran
Joined: Oct 2012
Posts: 1,127
Likes: 0
From: Capac, Mi
Year: 1997
Model: Cherokee
Engine: 4.0L
First off, a 1990 is a renix era jeep. you are not going to find a procharger kit specific for the 87-90 4.0L that i know of.
Second, if it runs and drives fine LEAVE THE ENGINE ALONE!
Third, it will never be fast, it is a 4.0L inline six. If you want fast sell it and buy something with a V8, that you can from the sounds of it ruin.
Fourth, do you know what all is needed to install 35's and have them perform to their ability? a 4.5" lift is too short without cutting. You also have to take into account either upgrading axles or swapping them out for stronger units. i am sure your jeep has the D30/D35 combo with 3.55 gears if an auto and 3.07 if manual. None of which are very good at all for 35's, you need 4.56 to 4.88 gears or higher(numerically). You sound like a squirrel whom has seen something shiny and wants it one second then see's another shiny object and then subsequently wants that one now.
Second, if it runs and drives fine LEAVE THE ENGINE ALONE!
Third, it will never be fast, it is a 4.0L inline six. If you want fast sell it and buy something with a V8, that you can from the sounds of it ruin.
Fourth, do you know what all is needed to install 35's and have them perform to their ability? a 4.5" lift is too short without cutting. You also have to take into account either upgrading axles or swapping them out for stronger units. i am sure your jeep has the D30/D35 combo with 3.55 gears if an auto and 3.07 if manual. None of which are very good at all for 35's, you need 4.56 to 4.88 gears or higher(numerically). You sound like a squirrel whom has seen something shiny and wants it one second then see's another shiny object and then subsequently wants that one now.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Thanks for the welcome I have help I have tools and I'm not looking to supercharge it yet it's now where's ready for that I'm just saying that I have plans for it and I'm starting them soon and I'm going to work my way up to putting the supercharger on it in the future it's my first jeep and my first car I'm just trying to get information about what has been done to jeeps and what is best for the jeep I'm going to rebuild the engine with in the next two years (hopefully) but I want something that can go pretty much anywhere and is fast on the road
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Senior Member
Joined: Nov 2013
Posts: 503
Likes: 0
From: Jax, FL
Year: 1998
Model: Cherokee
Engine: 4.0L
After reading this, I feel the need to interject.
You just got it. What you should be doing to your "bone stock" ride, is getting it into top mechanical shape. Do all fluid changes, tune up, replace belt and hoses, make sure steering/suspension/brakes/driveline is good to go...deal with any wiring issues, etc...
Start with a solid base. Then figure out what you want your rig to do. What kind of wheeling will it see? Build accordingly. Start with armor and recovery first...then move on to your lift, tires, gears and lockers, shocks, SYE, and then concentrate on power/engine upgrades...
It all adds up quickly...what you're talking about doing, I have done most of it...it's taken me YEARS. It has taken effort. And, it has taken $$$.
Just one guy's advice.
You just got it. What you should be doing to your "bone stock" ride, is getting it into top mechanical shape. Do all fluid changes, tune up, replace belt and hoses, make sure steering/suspension/brakes/driveline is good to go...deal with any wiring issues, etc...
Start with a solid base. Then figure out what you want your rig to do. What kind of wheeling will it see? Build accordingly. Start with armor and recovery first...then move on to your lift, tires, gears and lockers, shocks, SYE, and then concentrate on power/engine upgrades...
It all adds up quickly...what you're talking about doing, I have done most of it...it's taken me YEARS. It has taken effort. And, it has taken $$$.
Just one guy's advice.
My $500 Jeep was going to be a fun little DD project. $2000 in parts later and I'm finally done with restoring it to road ready.
OP, from my readings on CF: run it, wheel it, break it, upgrade/fix it. You'd be surprised what our stock girls can do. Seems like you want to Black Diamond when you haven't hit the kiddie/bunny trails yet.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I'll second this.
My $500 Jeep was going to be a fun little DD project. $2000 in parts later and I'm finally done with restoring it to road ready.
OP, from my readings on CF: run it, wheel it, break it, upgrade/fix it. You'd be surprised what our stock girls can do. Seems like you want to Black Diamond when you haven't hit the kiddie/bunny trails yet.
My $500 Jeep was going to be a fun little DD project. $2000 in parts later and I'm finally done with restoring it to road ready.
OP, from my readings on CF: run it, wheel it, break it, upgrade/fix it. You'd be surprised what our stock girls can do. Seems like you want to Black Diamond when you haven't hit the kiddie/bunny trails yet.
OK so let's start over here i have a 1990 jeep cherokee laredo in line six it's my first jeep I'm putting a 4.5' lift on it and it's got the stock Dana 35 axles what size tire should I put on the jeep and engine wish I have done most of the liquids and the only thing that is wrong with the oil is the rear main seal but its in all jeeps then we have done spark plugs and fuel filter and checked the wiring and the only thing that is wrong with the wiring it the switches to roll up and down the windows but besides that she is a perfectly good $800 jeep with 245,000 miles on it and I want a weekend warrior but keep it as a daily cause it's my first car and I'm not looking for something fast just something to get me from point a to point b
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
OK so let's start over here i have a 1990 jeep cherokee laredo in line six it's my first jeep I'm putting a 4.5' lift on it and it's got the stock Dana 35 axles what size tire should I put on the jeep and engine wish I have done most of the liquids and the only thing that is wrong with the oil is the rear main seal but its in all jeeps then we have done spark plugs and fuel filter and checked the wiring and the only thing that is wrong with the wiring it the switches to roll up and down the windows but besides that she is a perfectly good $800 jeep with 245,000 miles on it and I want a weekend warrior but keep it as a daily cause it's my first car and I'm not looking for something fast just something to get me from point a to point b
Senior Member
Joined: Nov 2013
Posts: 503
Likes: 0
From: Jax, FL
Year: 1998
Model: Cherokee
Engine: 4.0L
OK so let's start over here i have a 1990 jeep cherokee laredo in line six it's my first jeep I'm putting a 4.5' lift on it and it's got the stock Dana 35 axles what size tire should I put on the jeep and engine wish I have done most of the liquids and the only thing that is wrong with the oil is the rear main seal but its in all jeeps then we have done spark plugs and fuel filter and checked the wiring and the only thing that is wrong with the wiring it the switches to roll up and down the windows but besides that she is a perfectly good $800 jeep with 245,000 miles on it and I want a weekend warrior but keep it as a daily cause it's my first car and I'm not looking for something fast just something to get me from point a to point b
It's requested that you use proper punctuation, please. Even the guys from France and Spain who request help can manage English with appropriate punctuation.
The answer you'll probably get is to search the forum. There are many answers to all your questions as they're common questions. Arm yourself with knowledge available here and no one can take that from you. You should check my first thread. It's a train wreck. Years later, I'm trying to return all the good karma from receiving so much help on this board.
Last edited by NewbJeep; Oct 21, 2016 at 10:52 AM.
Senior Member
Joined: Nov 2013
Posts: 503
Likes: 0
From: Jax, FL
Year: 1998
Model: Cherokee
Engine: 4.0L
CF Veteran
Joined: Jan 2012
Posts: 2,208
Likes: 5
From: Ocean County, NJ
Year: 1998
Model: Cherokee
Engine: 4.0L


