building a beefed up np231

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 5, 2004

• #1

OK, my transfer case has 280,000+ miles on it and it has never been opened up, so I figure its time for some work. I am going to be installing a AA SYE in to it, so I figure I might as well build it to be able to handle my stroker and 36's. I did a lot of searching and all I really found out is that you can swap some parts from a np241 into the 231. I will be buying a 231 at the pull and save, all t-cases are $54. I am on a budget and would like to make it as strong as I can for under $300. I just need any info on beefing up the 231 you have especially if it involves parts from other applications I can scrounge up for dirt cheap.

 

BrettM

NAXJA Forum User

Location

michifornia

• Aug 5, 2004

• #2

this could be total BS, I'm not sure if I remember this right, but I think there's a Dodge NP case that has a bigger/stronger chain that works. try searching here and Google

 

C

csudman

NAXJA Forum User

Location

Statesville, NC

• Aug 5, 2004

• #3

If your gonna spend 300.00, get a dana 300. Do the 20.00 flip kit on pirate and have a better, stronger tcase with way more building options.

 

BrettM

NAXJA Forum User

Location

michifornia

• Aug 5, 2004

• #4

csudman said:

If your gonna spend 300.00, get a dana 300. Do the 20.00 flip kit on pirate and have a better, stronger tcase with way more building options.

Click to expand...

that's the route I would (will) take

 

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 5, 2004

• #5

csudman said:

If your gonna spend 300.00, get a dana 300. Do the 20.00 flip kit on pirate and have a better, stronger tcase with way more building options.

Click to expand...

$300 is my max limit, and since I am moving for school in 2 weeks I will be unemployed for a while. I was thinking $54 for the np231, $120-$150 for a HD SYE off of ebay or a bb, and under $100 for donor parts.

 

BrettM

NAXJA Forum User

Location

michifornia

• Aug 5, 2004

• #6

if you're gonna stick with a 231 and your budget is that tight I think just the HD SYE and a new chain is the best bet...

 

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 5, 2004

• #7

This was the thread I remember reading a while ago that got me thinking about this.
http://www.naxja.org/forum/showthread.php?t=23943&highlight=turd+polishing

I'm still not sure if the larger chains come from the 241 or not.

 

C

ChiXJeff

Curmudgeon

NAXJA Member

Location

SE MN

• Aug 5, 2004

• #8

I'm pretty sure that the bigger chain comes from an NP231D as opposed to your NP231J. It's a wider chain, and requires 2 new sprockets as well.

If you have a $300 limit, you won't be thinking about this route, a new chain and sprocket set is a couple of hundred on it's own.

 

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 5, 2004

• #9

OK, lets forget my price limit, it is getting in the way. What applications was the 231d used in? If I can find a low mileage case I could get the chain and sprockets for next to nothing. Actually would it be possible to just use a np231d on my xj?

 

Last edited: Aug 5, 2004

BrettM

NAXJA Forum User

Location

michifornia

• Aug 5, 2004

• #10

i'd consider using used sprockets, but I wouldn't bother with a used chain

 

Yucca-Man

NAXJA Member # 683

Location

Castle Rock, CO

• Aug 5, 2004

• #11

BrettM said:

this could be total BS, I'm not sure if I remember this right, but I think there's a Dodge NP case that has a bigger/stronger chain that works. try searching here and Google

Click to expand...

That's the NP231D mentioned just above this post.

 

J

Jeff 98XJ WI

NAXJA Forum User

Location

Butternut, WI

• Aug 9, 2004

• #12

As was mentioned in the other thread that was eluded to higher up, I did a pretty decent writeup on this exact thing on http://www.madxj.com in the technical section. Check it out for the pics and inf. Jeff