Hello,
I just bought a 98 durango with the 318. I recently bought a cold air intake off of ebay. It is a copy of the aem brute force intake system. Anyway...the plastic throttle body cover that came with the intake doesn't fit great against the throttle body. How big of an issue is this? Will much air leak out? When I turn the throttle while under the hood, the only air (sucking) sound I hear is coming from the air filter...also, I can't feel any air getting suckup up around the intake cover. Do you think I need to worry about this or leave it? I'm thinking of trying to use the stock intake cover with the rest of the setup I bought. The issue that comes up with that is the the stock intake cover is 3" and the pipe that came with the ebay intake system is 4".

 

Sounds like you may have got the wrong one. I would think you would want a 3" pipe for the 3" intake.

Post a link to the one you bought.

 

Ar does not "leak out" of an intake. Air is sucked in. If the plate over the TB is too big, then you are saying there is a big gap at where the cover hits the TB? As stated, posting a pic would help.

 

http://www.ebay.com/itm/97-99-Dakota-98-03-Durango-5-2L-5-9L-V8-Cold-Air-Intake-Blue-Filter-Heat-Shield-/380851154222?fits=Make%3ADodge%7CModel%3ADurango
I didn't use the throttle body spacer because the bolts weren't the right threads…this may be why the cover isn't fitting correctly.

 

Hard to tell from the picture, but the hole in that air hat does look awfully big. Throttle body spacers are only useful as paper weights too.

 

Maybe your supposed to use some type of gasket?

 

I think the kit is just wrong. My kit had the same aluminum tube but mounted it to the OEM cap.