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MoparMadness
Dodge Dakota
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12/21/2004
15:12:40
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 Subject: Under Drive pulleys
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what are the pros and cons of a set of reduction under drive pulleys and has anybody tried them on a 99 318?
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Sneezer
Dodge Dakota
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12/21/2004
16:26:40
|  RE: Under Drive pulleys
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Pros: less drag on engine. Revs a little quicker, slight increase in power.
Cons: Requires shorter belt. Alternator does not charge at idle in many trucks. Frequent battery problems if you spend a lot of time in traffic and have a lot of electrical stuff on your truck.
Many have used them on the 318 and the 360.
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daddio
Dodge Dakota
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12/21/2004
16:55:01
| RE: Under Drive pulleys
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i have had an undersize crank pulley ONLY on my '00 QC 3.9 for about a year now and no ill effects. even with everything on a/c, hi beams, foglights, stereo w/amp idling voltage gage reads 14. i still have the original battery. i live in south louisiana, if the warmer weather has anything to do with it.
seems to rev a little faster and maybe a little more power. nothing to write home about. i got the pulley for 15 bucks so i am not complaining.
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hybrid
Dodge Dakota
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12/21/2004
18:38:59
| RE: Under Drive pulleys
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Is there a harmonic balancer on the stock crank pulley?
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DakotaChick1
Dodge Dakota
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12/21/2004
19:16:09
| RE: Under Drive pulleys
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99 318 here. Crank pulley only and picked up two tenths in 1/4. Alternator pulley is good for nothing but killing your battery.
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daddio
Dodge Dakota
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12/21/2004
20:23:58
| RE: Under Drive pulleys
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hybrid, the pulley bolts to the balancer.
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hybrid
Dodge Dakota
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12/21/2004
21:12:30
| RE: Under Drive pulleys
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daddio,
Gotcha. I've never looked at the crank pulley on a dakota so I wasn't sure. With my car i know people were freaking out about removing the harmonic balancer when going to aftermarket under drive pullys. Their main gripe was throwing off the balance of the crank by removing mass from one side and not the other, unless you went with a lightend flywheel. Cool learned something new today...
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daddio
Dodge Dakota
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12/22/2004
08:37:38
| RE: Under Drive pulleys
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hybrid, i've seen plenty of diff make engines and cars and never have seen anyone have to remove a balancer to install underdrive pulleys.
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hybrid
Dodge Dakota
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12/22/2004
09:27:53
| RE: Under Drive pulleys
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It's part of the pulley.
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hybrid
Dodge Dakota
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12/22/2004
09:34:32
| RE: Under Drive pulleys
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maybe i'm mistaken.
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last_username
Dodge Dakota
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12/22/2004
13:14:25
| RE: Under Drive pulleys
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Well, he is sort of correct....with the newer dakotas the pulley reduction occurs by changing out the crank pulley only and for some reason it comes with a new balancer (to keep the weight the same?)
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daddio
Dodge Dakota
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12/22/2004
13:29:21
| RE: Under Drive pulleys
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i've got an '00 and you change the pulley only. it bolts to the balancer.
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tanner hinton
Dodge Dakota
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9/19/2005
17:42:37
| RE: Under Drive pulleys
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I have a 00 2.5 liter. I have not seen anybody use a under pulley for that size of engine. my question is will it work and if so how much? it seems impossible to find and cost is a concern with my small budget. anybody got any ideas?
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ryan
Dodge Dakota
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6/29/2010
14:03:30
| RE: Under Drive pulleys
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Yeag get a bigger engine. I've got a 97 2.5 and there is very little if any good performance parts for them. I've found that if you search for parts under the jeep 2.5 you'll find much more.
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