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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > ZJ 5spd Swap

Building a Bumper?Ruffstuff Axle Simple Swap Kit!~Artec JK 1 TON SWAP~

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Unread 02-06-2012, 10:13 AM   #46
General_Jeep
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One from a dodge Dakota with a 3.9l it can be from an ax15

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Unread 02-06-2012, 04:28 PM   #47
sskilla
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Quote:
Originally Posted by General_Jeep View Post
One from a dodge Dakota with a 3.9l it can be from an ax15
awsome thank you.
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Unread 06-21-2012, 11:05 PM   #48
CharlieDog
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Hope this isnt too old to bump, but thank you for this write up! I'm seriously considering putting a manual trans in my zj. I've got the 4.0 though. Very good write up.
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Unread 08-05-2012, 10:20 PM   #49
moparrr07
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just to add more info- i have done the exact same swap in my 98 5.2,

- 04 wrangler nv3550, difference is it has a lower 4.01 first gear ratio, better for crawlin, (going from the 2.7 1st gear to the 4.01 is the same ratio reduction as swaping in a 4:1 low kit in the t case) plus being a wrangler trans is clocks the transfer case up higher and doesnt hang down as long
- use a 94-99 dakota 3.9 bellhousing
- cherokee pedals way easier to find, very minor mods to get to work

one question, did you ever source a boot that fits into the 96-98 center console?
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Unread 08-11-2012, 08:16 AM   #50
Mark-318-IT
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hi guys, i'd like to do the same your swap...a question please:

how are your swapped zj running? i explain: is the nv3550 a trans that you could handle "roughly"? can you do some "hard shifting"? ...is a tough transmission?

how about swapping a van ZF 5 spd?

are the questions clear? sorry for my "english"

thanks
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Unread 08-11-2012, 06:57 PM   #51
ratmonkey
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if the zf used the same bell housing pattern and had 4wd output. go ahead (you may or may not need transmission tunnel modification depending upon the size)
the 3550/3500 is a moderate duty trans, it can handle a small amount of abuse behind a 318, but a modified 318 or 360 and hard launches will destroy either trans quickly. i'm on my second as you can see.
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Unread 08-11-2012, 07:00 PM   #52
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Quote:
Originally Posted by moparrr07 View Post
just to add more info- i have done the exact same swap in my 98 5.2,

- 04 wrangler nv3550, difference is it has a lower 4.01 first gear ratio, better for crawlin, (going from the 2.7 1st gear to the 4.01 is the same ratio reduction as swaping in a 4:1 low kit in the t case) plus being a wrangler trans is clocks the transfer case up higher and doesnt hang down as long
- use a 94-99 dakota 3.9 bellhousing
- cherokee pedals way easier to find, very minor mods to get to work

one question, did you ever source a boot that fits into the 96-98 center console?
the dodge 3500 uses a 3.49 first
the jeep 3550 uses a 4.02, like the gm version. not that big of a difference.
the ram transmission is clocked the same as a zj or wrangler. not low at all. the dakota case is clocked a bit lower, at the t-case side.
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Unread 08-11-2012, 10:57 PM   #53
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Originally Posted by ratmonkey View Post
the dodge 3500 uses a 3.49 first
the jeep 3550 uses a 4.02, like the gm version. not that big of a difference
the jeep 3550 uses a 4.01 like i said...... it absolutely makes a difference, its a 14% difference in 1st gear, it is equivalent to swapping your 4.56 gears out for 5.30 gears

which gear ratios you want will depends on your axle and tcase ratios and is up to your specific build

id much rather have a wider gearing, have the extra ratio down low is nice, its not for a race car that need super tight ratios, there is no reason to go with a 3500 over a 3550 unless you can get one really cheap

Quote:
Originally Posted by ratmonkey View Post
the ram transmission is clocked the same as a zj or wrangler. not low at all. the dakota case is clocked a bit lower, at the t-case side.

the stock zj is clocked complete differently than the wrangler, like i said... it will be about 2 inches higher, another benefit of the 3550 over the 3500

Quote:
Originally Posted by Mark-318-IT View Post
how are your swapped zj running? i explain: is the nv3550 a trans that you could handle "roughly"? can you do some "hard shifting"? ...is a tough transmission?
i have put about 10k miles a extremely hard driving on my jeep and have not had a single issue, i will do a 4krpm launch in 2wd, roast the tires, bang 2nd, roast them all the way through, bang 3rd, and it will go about half way through 3rd and finally gain traction, thats on sticky 35s on the street, im not easy on the syncros at all and it has taken it, it has well passed my expectations, i expected it to pop, i am not going to change my driving habits

i know alot of guys that run them in classic broncos with 400hp/400lb ford engines, this is really the trans of choice for them, they love it

Quote:
Originally Posted by Mark-318-IT View Post
how about swapping a van ZF 5 spd
i dont know if anyone has done a swap like this, its way to easy to swap in a 3550/3500 because all the parts allready bolt right up

if you are referencing the 6 speed nsg370 that replaced the nv3550/3500 in 2005, this transmission is know to have a much lower rating and only good behind 6 cylinders
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Unread 08-11-2012, 11:42 PM   #54
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Quote:
Originally Posted by moparrr07

the jeep 3550 uses a 4.01 like i said...... it absolutely makes a difference, its a 14% difference in 1st gear, it is equivalent to swapping your 4.56 gears out for 5.30 gears

which gear ratios you want will depends on your axle and tcase ratios and is up to your specific build

id much rather have a wider gearing, have the extra ratio down low is nice, its not for a race car that need super tight ratios, there is no reason to go with a 3500 over a 3550 unless you can get one really cheap

the stock zj is clocked complete differently than the wrangler, like i said... it will be about 2 inches higher, another benefit of the 3550 over the 3500

i have put about 10k miles a extremely hard driving on my jeep and have not had a single issue, i will do a 4krpm launch in 2wd, roast the tires, bang 2nd, roast them all the way through, bang 3rd, and it will go about half way through 3rd and finally gain traction, thats on sticky 35s on the street, im not easy on the syncros at all and it has taken it, it has well passed my expectations, i expected it to pop, i am not going to change my driving habits

i know alot of guys that run them in classic broncos with 400hp/400lb ford engines, this is really the trans of choice for them, they love it

i dont know if anyone has done a swap like this, its way to easy to swap in a 3550/3500 because all the parts allready bolt right up

if you are referencing the 6 speed nsg370 that replaced the nv3550/3500 in 2005, this transmission is know to have a much lower rating and only good behind 6 cylinders
I'd love to see a video of that 3rd gear burn.
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Unread 08-12-2012, 02:17 AM   #55
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Originally Posted by jtackerman28 View Post
I'd love to see a video of that 3rd gear burn.
having a manual swap an being able to launch at redline makes all the difference

it couldnt do a burnout with the stock trans, plus remember, 3rd gear in my trans (1.39) is fairly close to the stock 2nd gear (1.45)
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Unread 08-12-2012, 02:40 AM   #56
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thanks moparrr07, that's what i'd want to hear
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Unread 08-12-2012, 05:32 AM   #57
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i was looking into getting a short throw for my 3550, before i even put it in because i thought it was going to be very truck like, but after driving it, even with a 14inch shifter on it, its pretty darn tight and i like it the way it is, at the knob its only 5 or so inch front to back and 6 inches side to side
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Unread 08-12-2012, 08:26 AM   #58
Mark-318-IT
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yeah i understand, i was only asking if i can take off at the green light

actually i'm looking if i can find something here in italy to do the swap.

do you know if does exists anything like a reinforcement kit for the nv3550? something for increasing the stenght of that?

and where can i find that tranny? on kj and tj?

thanks, sorry for all those questions
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Unread 08-12-2012, 10:10 AM   #59
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I will not change my driving habits... Hahahaha love that. If you build it, you can destroy it. Nice build rat. Im thinking on swapping my peugot out for something better.(mj)
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Unread 08-12-2012, 11:37 AM   #60
ratmonkey
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Quote:
Originally Posted by moparrr07 View Post

i have put about 10k miles a extremely hard driving on my jeep and have not had a single issue, i will do a 4krpm launch in 2wd, roast the tires, bang 2nd, roast them all the way through, bang 3rd, and it will go about half way through 3rd and finally gain traction, thats on sticky 35s on the street, im not easy on the syncros at all and it has taken it, it has well passed my expectations, i expected it to pop, i am not going to change my driving habits

i know alot of guys that run them in classic broncos with 400hp/400lb ford engines, this is really the trans of choice for them, they love it
vids or lies.
the 3550 is the exact same internals as the VERY poorly regarded gm 3500, and only gear ratios have changed very slightly from the dodge close ratio version, the synchros and shaft sizes are the same. it can't hold up to 300ftlbs from a 318 or 360 with that kind of launching on STREET tires. so, i'm saying you're blowing smoke.
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