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Discussion Starter · #1 ·
I am swaping a 4.0L in my 87 YJ and am searching for a tranny I was thinking of doing a NV 4500 and was wondering what year dodges can I get this tranny out of. I found one at a local yard they said it was out of a 93 Dodge 2500 V8 but they couldnt tell me if it was a NV 4500 is that the one I need or did they only run in the deisel I just want to make sure.. Also what eles do I need in order to mate a Dana 300 with that tranny? Thanks <IMG SRC="smilies/question.gif" border="0">
 

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If I remember right 94 and newer 2500 HD & 3500 Rams use the NV4500. I believe the V-8, V-10 and Deisels all use it. The 93 and down Rams use a junk Gertag trans.

<IMG SRC="smilies/thefinger.gif" border="0">
 

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answer the question...... why do you want/ need a 4500.. dont get me wrong, it is a good tranny, but i think a t-18 or a 435 is the best stout tranny's to use on a jeep...so..... ask yourself why? if its just because its popular..... spend the money on an atlas and put a 435 in it.... you wont regret.... if its because you do alot of highway speed driving, then you may want to continue on with your 4500 thoughts... imho...


btw.... <IMG SRC="smilies/thefinger.gif" border="0"> newbie
 

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It is a pretty big and expensive conversion. You need to go to the Advanced Adaptor site and do some research. You will need a new bell housing, clutch parts and the Chevy input shaft. Call AA for specific details. The install is not that hard, but I would recomend a 2" boddy lift because it is huge and it will stick through the tunnel real far.
 

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http://www.phoenixhardparts.com/

Good place to get the NV4500 if you are going to get one... They will put the proper input and output shaft's in for no extra charge when you buy the tranny. They sell a lot of stuff on Ebay so you may want to try and talk them down a little from their listed price. I got a very good price on mine from what I could find. But you will still need to get some stuff from AA, Its just that the NV4500 will be cheaper from phoenixhardparts.

Badassjeepguy is right though. Unless you use it as your daily driver I would go with a shorter tranny like he suggested. I have the NV4500/np231 in mine and it is too long, I am spring over with stock springs and it has made so I really need to be running a high pinion rear end but I cant afford one yet so I just bought a 1995 grand cherokee as a daily driver. To make a long story short if I did it all over again I would have got a smaller tranny and got a different daily drive like I did.(GC is so much nicer to drive in every day)
<IMG SRC="smilies/thefinger.gif" border="0"> Hope this helped a little.
 

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i would say go ahead and pick up a 435. they are geared lower than a 4500 and a fraction of the price. plus it is a fairly easy swap to put one behind a 4.0L just parts off older jeeps - no need to call AA except for a pilot bushing. then run a EB dana20 behind it to keep you driver side drop.
 

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if you think about it, compared to a 4 spd, the 4500 actually has a 7.48:1 first gear.

compare the 4500 to a t18

t18 1st: 6.32:1
t18 final gear: 1:1
6.32/1=6.32

4500 1st: 5.61:1 (6.34 in some cases)
4500 final: .75:1
5.61/.75=7.48
6.34/.75=8.45

so really, the 4500 is the mother of all granny manuals, if you factor in the final drive.

however, space is an issue in SWB jeeps. soooo 4spd it is i guess, eh? <IMG SRC="smilies/wink.gif" border="0">
 

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Originally posted by cornjeeper:
<STRONG>i would say go ahead and pick up a 435. they are geared lower than a 4500 and a fraction of the price. plus it is a fairly easy swap to put one behind a 4.0L just parts off older jeeps - no need to call AA except for a pilot bushing. then run a EB dana20 behind it to keep you driver side drop.</STRONG>
For those of us who don't live near junk yards full of NP435s and EB parts but would like this combo is there a commercial source available to get new or rebuilt ones?
 

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Discussion Starter · #9 ·
Well tahnks for your replies... I looked around and found a T-18 with the low gear in it.. I talked to AA and they dont make any bell housing or adapters to mate the t-18 with the 4.0L and body know what would work with that setup???
 

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I am also interested in some tranny swap options like costs and parts for my YJ. I have a 4.0,AX15,NP231. Would like to keep the TC since I just put a HD sye in it, but I would consider a tc swap. Please post some more ideas about 4 speed swaps. what is the best 4 speed to use and what adapters are needed etc. Thanks

[ 11-02-2001: Message edited by: Rodney YJ ]
 

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AA is bullshittin ya. just get a bellhousing from a t170 series 4 speed or a t150 3 speed and the t18 will bolt right up, the bellhousing will go right on the 242 unless it's a newer 242 with the mopar bolt pattern.
 

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you guys are missing the all mighty SM-465 that tranny kicks ass well at least hooked to portal Dana 35cs' it kicks ass!! <IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0">
 

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Originally posted by WillyPete:
<STRONG>if you think about it, compared to a 4 spd, the 4500 actually has a 7.48:1 first gear.

compare the 4500 to a t18

t18 1st: 6.32:1
t18 final gear: 1:1
6.32/1=6.32

4500 1st: 5.61:1 (6.34 in some cases)
4500 final: .75:1
5.61/.75=7.48
6.34/.75=8.45

so really, the 4500 is the mother of all granny manuals, if you factor in the final drive.

however, space is an issue in SWB jeeps. soooo 4spd it is i guess, eh? <IMG SRC="smilies/wink.gif" border="0"></STRONG>
the 435 is 6.8 to 1..........

i gotta ask... what the fawk is the 5th gear overdrive got anything to do with the 1st gear low gear.....you dont make much sense......... <IMG SRC="smilies/rolleyes.gif" border="0">
 

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Originally posted by badassjeepguy:
<STRONG>i gotta ask... what the fawk is the 5th gear overdrive got anything to do with the 1st gear low gear.....you dont make much sense......... <IMG SRC="smilies/rolleyes.gif" border="0"></STRONG>
I think what he was saying is that if you have the 5th gear(overdrive) that then you can have a lower gear in the pumpkin and still have ok highway gears... instead of having 4.56 maybe you could have 4.88 or 5.13... Does that make sense. Im not sure if this is what he meant but thats what I got out of it.

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JB Conversions sells and NV4500 setup for the 4.0L, the cost is great, the tranny is new, and the results are superb.

I do recommend running the short shaft, or an Atlas behind in to keep driveshaft length, I've been running mine as a daily driver/ trail rig for almost a year now, and I'm quite happy... <IMG SRC="smilies/eek.gif" border="0">
 

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Discussion Starter · #18 ·
I dont get what you mean Badass the fifth gear has nothing to do with it except you get a 5th gear, what maybe an extra 500-700rpm from the fifth gear they are both 6 to 1 whether its a 4 spd or a 5spd we are talking about first gear..
 

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I thin what BAJG is saying is that the argument he quoted is BS.

if you think about it, compared to a 4 spd, the 4500 actually has a 7.48:1 first gear.
is a crock. the first gear ratio is 5.6:1. For every 5.6 rotations of the input shaft, there is a single rotation coming out. Plain and simple. (unless you've got the early tranny with the 6.3 first gear...)

What LowRangeRider said is true. With the OD, you can have a lower diff ratio. This is the primary advantage of the NV4500. You can run lower diff gears and still maintain your street-ability.
 

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Originally posted by Mo:
<STRONG>I thin what BAJG is saying is that the argument he quoted is BS.

is a crock. the first gear ratio is 5.6:1. For every 5.6 rotations of the input shaft, there is a single rotation coming out. Plain and simple. (unless you've got the early tranny with the 6.3 first gear...)

What LowRangeRider said is true. With the OD, you can have a lower diff ratio. This is the primary advantage of the NV4500. You can run lower diff gears and still maintain your street-ability.</STRONG>

exactly.... you dont combine the 5th gear ratio and the low gear ratio....... low gear is low gear.... 5.6 to 1 is 5.6 to 1..... not 5.6/.75 gives you whatever the hell he came up with.... geeeeze... <IMG SRC="smilies/rolleyes.gif" border="0">


MO, i cant believe your the only one who saw this.....glad someone did...... <IMG SRC="smilies/biggrin.gif" border="0">
 
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