Difference in '08 5.7 2wd vs 4wd engine ? - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 16 (permalink) Old 07-22-2017, 01:29 PM Thread Starter
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Difference in '08 5.7 2wd vs 4wd engine ?

There is a 2008 limited Commander for sale in the local area. 180k miles with a bad engine.

Because I'm curious I was Trying to look up the cost of a engine and they show a difference in 4x4 and 2wd. What is the real difference?

I know sometimes it's simple things, like brackets and pilot bearing size.


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post #2 of 16 (permalink) Old 07-22-2017, 04:58 PM
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There is no difference in the engine itself. The difference would be in the drive train.

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post #3 of 16 (permalink) Old 07-22-2017, 05:21 PM Thread Starter
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Thanks.
That's what I thought. Wish I could see what the interchange computer says about it.
When I look up the oil pan, engine block, cylinder heads, flexplate, there is no difference in 2wd vs 4wd. But when I look up the engine they want to know if it's 4wd or not.

I will probably pass on this Commander, assuming worst case for a engine I know nothing about, $2000-3000 for a used the engine then all the work and with all the other little parts figured in it's not worth it when I could buy a running Commander for the same price. Probably why this poor guy is letting it go. He is looking at all the cost I am plus a easy $1000 in labor for a mechanic to do it.


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post #4 of 16 (permalink) Old 07-22-2017, 05:27 PM
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Quote:
Originally Posted by Conundrum2006 View Post
Thanks.
That's what I thought. Wish I could see what the interchange computer says about it.
When I look up the oil pan, engine block, cylinder heads, flexplate, there is no difference in 2wd vs 4wd. But when I look up the engine they want to know if it's 4wd or not.

I will probably pass on this Commander, assuming worst case for a engine I know nothing about, $2000-3000 for a used the engine then all the work and with all the other little parts figured in it's not worth it when I could buy a running Commander for the same price. Probably why this poor guy is letting it go. He is looking at all the cost I am plus a easy $1000 in labor for a mechanic to do it.


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I would not think there is much difference in the engine itself except some mounts maybe. Then you could use the existing ones in place if needed. FYI...I got a jasper 5.7 hemi long block put in my 4x4 qd2 2010 commander for $3800 plus the labor.

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post #5 of 16 (permalink) Old 07-22-2017, 05:43 PM Thread Starter
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For a rebuilt 5.7 that's a good price. Cheapest I've seen $3100 for one of the ATK knock off brands. Most are close to $4000 or higher for rebuilt.

For used the interchange looks like 2006-08 on the 5.7
Maybe later years will work too, I've got no idea.
I know the 3.7 v6 interchanged 2005-12, swap the oil pan, engine mounts and a couple of sensors the 2012 motor dropped in no problems.

Kind of wish I could save this Commander, 5.7 v8 and looks like it has the better QD2 package too.



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post #6 of 16 (permalink) Old 07-22-2017, 07:15 PM
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I almost answered this earlier. I was going to say the oil pan is the difference, because when there's a difference in engines between 4wd and 2wd, it's always the oil pan.

Then I thought I'd be helpful and hit the parts catalog and get the oil pan part #'s, and it's the same oil pan for 4wd as for 2wd.

I wonder if somehow the interchange for the used parts market is using that 4wd/2wd thing to choose between MDS and non-MDS.
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post #7 of 16 (permalink) Old 07-22-2017, 07:27 PM
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Quote:
Originally Posted by Racer_X View Post
I almost answered this earlier. I was going to say the oil pan is the difference, because when there's a difference in engines between 4wd and 2wd, it's always the oil pan.

Then I thought I'd be helpful and hit the parts catalog and get the oil pan part #'s, and it's the same oil pan for 4wd as for 2wd.

I wonder if somehow the interchange for the used parts market is using that 4wd/2wd thing to choose between MDS and non-MDS
.
All of the 5.7l Hemis have MDS regardless if they are 2WD or 4WD.

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Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
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post #8 of 16 (permalink) Old 07-22-2017, 11:08 PM Thread Starter
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I can't find what the difference would be the rebuilt long block interchanges 2005-8
Crankshafts and everything else i have looked up is the same 2wd & 4wd

Yet the use part interchange shows a difference, I would love to read the notes cause it's got to be something like a bracket that different.

Used part numbers are :
300-08557A for 4wd
300-08557C for 2wd

If you want to throw a counterman for a loop call and ask him to check a number then read the Hollander number he may give you the wholesale price before asking who you are with.


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post #9 of 16 (permalink) Old 07-22-2017, 11:13 PM
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Quote:
Originally Posted by Conundrum2006 View Post
There is a 2008 limited Commander for sale in the local area. 180k miles with a bad engine.

Because I'm curious I was Trying to look up the cost of a engine and they show a difference in 4x4 and 2wd. What is the real difference?

I know sometimes it's simple things, like brackets and pilot bearing size.


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A little reference material;

https://en.wikipedia.org/wiki/Jeep_Commander_%28XK%29


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Last edited by Big Blue; 07-23-2017 at 12:30 AM.
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post #10 of 16 (permalink) Old 07-23-2017, 01:49 AM Thread Starter
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Link doesn't work, anyway I doubt a wiki article can answer why parts catalogue list different motors 2wd and 4wd when block, cylinder heads, crankshaft , oil pans and valve covers are identical.


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