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Lowkota
Dodge Dakota
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8/01/2007
19:51:54
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 Subject: 5 speed transmissions
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is the 5 speed on a 3.9l the same as the ones they put on a 5.2l in the model year 1998. also can a 5.2 work on a 5 speed from a 3.9l if it is not the same?? thanks
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daddio
Dodge Dakota
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8/01/2007
22:26:54
| RE: 5 speed transmissions
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i'm pretty sure that year they both used the NV3500. if i'm correct then yes it would work.
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Shoe
GenIII
8/02/2007
01:44:04
| RE: 5 speed transmissions
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Actually, I think that they changed in '00 or '01. I know that my 3.9 had a AX15. The NV3500 (which is what was behind the V8s would work great on a 318. If you used a AX15 on a V8 it would work, but I would not try to get on it too hard. Like I said though they started putting NV3500s behind 3.9s a later year.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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daddio
Dodge Dakota
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8/02/2007
08:37:12
| RE: 5 speed transmissions
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must have changed in '00. my '00 QC 3.9 NV3500
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clint282cc
Dodge Dakota
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8/02/2007
11:12:58
| RE: 5 speed transmissions
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the AX15 is the same that comes in jeeps. and knowing that i would say put that thing behind anything you want!! not only because jeep trannys are notorious for being unstoppable i also have the experiance of watchin my friends do numorous revlimiter dumps. he beats the PISS OUT OF IT and the tranny never has a problem. also with th aw4 in the autos are great too. thats what i have. also think about the jeep grand cherokees, they came with the 318 and had the aw4s. most jeep guys say the ax15 is stronger too so you might want to stick with that.
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Shoe
GenIII
8/02/2007
12:15:12
| RE: 5 speed transmissions
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Clint, I am sorry, but the AX15 was never meant for anything like that. Why do you think that they switched to the NV3500s in the 3.9s? I do not know how many transmissions I have seen people go through with that setup... (3.9 V6, AX15 5-speed). You can tell the transmissions were not built for it. Example, in my old one, if I started power-braking in 1st gear and hit about 5k and tried to shift to second it was hard because it was putting so much pressure on the transmission. Now, do not get me wrong, yes they are stout, but they were never made for that kind of abuse. I have seen people put them behind 360s, but they are not going to last long if you beat on them. If you drive them right, then more power to you.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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clint282cc
Dodge Dakota
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8/02/2007
13:36:41
| RE: 5 speed transmissions
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well im just telling you what i know about jeep transmissions. also those are 4x4 trannys now 2wd. idk what kind of difference that makes in strength though. your right if i had the choise i would get the better tranny. buuuuut if i was tight on money and wasnt planning on giving it 5000000 horse power then id run the ax15.
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Kowalski
GenIII
8/02/2007
17:40:26
| RE: 5 speed transmissions
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2WD and 4WD variations of the same tranny are usually pretty similar for durability. I think sometimes the only thing that saves those jeep transmission is the fact that they are in such a light vehicle.
Lead, follow, or get out of the way
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clint282cc
Dodge Dakota
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8/02/2007
20:16:44
| RE: 5 speed transmissions
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light vehicles. the jeeps im taklin about are the cherokees. those are 4500lbs just like these trucks. also with 31" tires.
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Kowalski
GenIII
8/04/2007
08:09:31
|  RE: 5 speed transmissions
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Bull. Even the largest Grand Cherokees aren't as heavy as our trucks. They are a unibody design which is lighter than our full frame trucks. The regular Cherokee is even lighter than that.
Lead, follow, or get out of the way
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clint282cc
Dodge Dakota
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8/04/2007
12:05:30
| RE: 5 speed transmissions
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lol dude d o you want me to go read the GVW sticker on my jeep and then go compare it to my truck? they are both in the 4500-4600lbs range.
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Kowalski
GenIII
8/04/2007
12:56:34
| RE: 5 speed transmissions
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While the GRAND Cherokees have porked up to a weight closer to that of the lighter models of gen 3 Daks, a regular Cherokee is a smaller, lighter vehicle; more in line with the weight of a gen 1 or 2 Dakota. It's commonly the CJ and the light regular Cherokee that people mod and beat up on. Perhaps you are talking about a Grand Cherokee ? I'm talking about those lighter, more commonly abused Jeeps. The regular Cherokee is no longer made.
Lead, follow, or get out of the way
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Shoe
GenIII
8/04/2007
17:09:46
| RE: 5 speed transmissions
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Either way... I do not know any Dodge transmissions except for their 6-speeds that will handle any V8 torque.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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TexasTodd
Dodge Dakota
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8/04/2007
23:21:11
|  RE: 5 speed transmissions
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Shoe,
My >360 ft/lb @ the (crank) 4.7, has the NV3500.
It handles the torque just fine.
BTW, the 5 speed you have, is it a manual, or one of those 4 speed auto's with a different downshift gear they call a 5 speed?
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Kowalski
GenIII
8/05/2007
08:14:44
| RE: 5 speed transmissions
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Those 4 speed autos with a different downshift gear (45RFE) are called 4 speeds, as they only go through 4 gears sequentially from top to bettom. The 2 different second gears are called 2 and 2 prime, not 2 and 3 !
Then there is a second, true 5 speed automatic that is based on that one (545RFE) where there are also 2 different ratios for second gear but the transmission actually does shift through 5 gears sequentially - it has 2 different overdrive ratios.
While these are both based on mechanically similar transmissions, the five speed gets its extra gear electronocally from the planetary style gearing - so the one Todd is calling a 5 speed is really a 4 speed (and that is the way DC marketed it) and there is also a true 5 speed automatic. The new Toyota Tundras have true 6 speed automatic transmissions.
Lead, follow, or get out of the way
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TexasTodd
Dodge Dakota
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8/05/2007
09:24:06
| RE: 5 speed transmissions
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Thanks for the info,
I'm a self shifter myself.
Many threads have complaints on the auto tranny's, especially with towing, etc.
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Kowalski
GenIII
8/05/2007
10:00:17
| RE: 5 speed transmissions
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One thing you might notice is that there are virtually no towing complaints about the 4 speed version of the 45RFE behind the earlier 4.7s. About the only towing complaint you'll ever see regarding the 5 speed version (545RFE) is that someone had to lock out overdrive to keep it from hunting. These two transmissions, never used behind the 5.2 or 5.9 motors, have proven to be very reliable. Waiting in line on a hill with a camper on the back to be parked at the race track would be a particularly miserable place to be with the manual transmission you prefer - no trouble at all with mine. No complaints here !
Lead, follow, or get out of the way
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clint282cc
Dodge Dakota
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8/05/2007
12:02:11
| RE: 5 speed transmissions
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i knwo what cherokee your talking about. i have one!! ive had my jeep longer than my truck and know 10X as much about that as my truck.
http://s114.photobucket.com/albums/n251/clint282cc/?action=view¤t=100_0923.jpg
those are the jeeps your talking about correct? yeah well those weigh 4500 lbs. just like my truck. and cjs are badass jeeps, if you can find one. thats why most jeeps you see are tjs and yjs. aka wrangler
also i posted a thread asking what tranny i had. think you guys could tell me? 99RC 318 auto. thanks
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Shoe
GenIII
8/05/2007
12:37:25
| RE: 5 speed transmissions
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Todd... why do you not start grabbing some hard 2nd and 3rds. Not just every once in awhile. I mean just about every time you drive. See how long it takes the transmission to start grinding and eventually the gear will go out. I have seen it numerous times. I know that most people do not drive like that, but if you want to then get a Tremec or a Richmond. Those things are bullet-proof. Far better than New-Venture when it comes to racing.
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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TexasTodd
Dodge Dakota
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8/07/2007
19:31:12
| RE: 5 speed transmissions
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I get 2nd gear posi, and occasionally third, whenever I want to. It may not be the best, but it'll do.
Shoe, you never answered my question above,
Is that the manual 5 speed, or an auto that y9ou have?
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Shoe
GenIII
8/08/2007
12:29:52
| RE: 5 speed transmissions
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It is a manual. They did not come out with the 5-speed auto until either '03 or '04. Which I would have never gotten either way because I love my manual gear boxes. :)
Finally... a V8. '01 Dodge Dakota RC, 4.7, 5-speed, 3.92 LSD. = R/T Killer.
well at least a stock one
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