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webos
Dodge Dakota
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1/14/2005
23:22:40
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 Subject: underdrive
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Message:
where can i find the best underdrive kit for a 99 dakota sport 3.9?
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daddio
Dodge Dakota
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1/15/2005
10:24:34
| RE: underdrive
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Message:
you may have trouble with a complete underdrive kit. charging, cooling etc. i've heard a lot of people complain about these. i have just an underdrive crank pulley. notice a little diff in performance but no ill effects. charging, cooling or otherwise. you couldcheck jegs, summit for the pulleys. good luck.
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webos
Dodge Dakota
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1/15/2005
12:27:52
| RE: underdrive
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Message:
thanx, your probably right, i might just stick with the crank pulley then. any other exterior engine mods you suggest?
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daddio
Dodge Dakota
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1/15/2005
12:41:54
| RE: underdrive
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V8 TB or if you have the money, Fastman or F & B TB's(they are pricey), free flowing muffler. i wouldn't spend any money on an exhaust system unless you want something "pretty". keep it in good tune. you could do the crank sensor mod and add a little timing.
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webos
Dodge Dakota
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1/15/2005
22:04:54
| RE: underdrive
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Message:
i got a flex fan...does that help?
ill look into new TB's now
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daddio
Dodge Dakota
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1/16/2005
12:14:08
| RE: underdrive
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Message:
if you've got the electric cooling fan and flex fan, you can do away with the flex fan. i got rid of my clutch fan about a year ago and installed a 180 deg t/stat and my truck hasn't overheated yet.
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webos
Dodge Dakota
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1/17/2005
12:41:20
| RE: underdrive
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Message:
i dont have an electric fan though
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furball69
Dodge Dakota
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1/17/2005
23:41:29
| RE: underdrive
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Message:
When you say underdrive crank pulley you mean that the pully is bigger than stock right?
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webos
Dodge Dakota
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1/18/2005
00:13:26
| RE: underdrive
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Message:
yes
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daddio
Dodge Dakota
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1/18/2005
08:54:40
| RE: underdrive
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Message:
no, the pulley is smaller than stock.
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furball69
Dodge Dakota
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1/18/2005
09:11:42
| RE: underdrive
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Message:
Think about it. We're talking about the crank pulley here.
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daddio
Dodge Dakota
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1/18/2005
09:17:02
| RE: underdrive
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Message:
i have one on my truck. it was described as an underdrive pulley and it is smaller than the original.
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93dak4x4
Dodge Dakota
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1/18/2005
10:35:16
| RE: underdrive
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Message:
underdrive is larger then stock...the bigger diameter turn slower and reduces the rpm. smaller would increase the speed of your system, that would be an overdrive pulley.
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webos
Dodge Dakota
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1/18/2005
10:37:40
| RE: underdrive
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Message:
it is bigger than stock. overdrive is smaller than stock
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daddio
Dodge Dakota
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1/18/2005
12:25:42
| RE: underdrive
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Message:
OK, check this out
http://store.summitracing.com/default.asp?target=esearch.asp&N=110&Ntk=KeywordSearch&Ntt=pulley&x=14&y=9
ASP-504500
These Auto Specialties underdrive crankshaft pulleys turn your belt-driven accessories 25 percent slower than stock, and provide about 15 extra horses--for about 30 minutes work. You'll also get better mileage and accessory life in the bargain. The pulleys are made from either high-grade carbon steel or hard anodized aluminum. The steel pulleys features a black nitride finish, while the aluminum pulleys are hard anodized in black. They come complete with mounting bolts and instructions.
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furball69
Dodge Dakota
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1/18/2005
18:50:58
| RE: underdrive
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Message:
Actually now that I think about it I was thinking the bigger pulley would be more efficient but the smaller pulley would be correct.
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