on my 84 trans am, i have a front spoiler, does that act as an airdam? or am i missing it? can i get one from dealer if i need one? I'll try to get some pics up here to show you guys.

 

here's a pic that kinda shows what i mean

 

yes, thats the airdam, or in dealer parlance, air deflector. that is the piece(s) you need to keep cool at hiway speeds. I dont know about the 84, but deflectors for later 3rd gens can be gotten at the dealer, and they are not any more expensive than aftermarket.

 

cool, wasn't sure if i was missing the airdam. thanks

 

Here's the part number and pricing from GMPartsDirect.com:
GM PART # 12395557
CATEGORY: Radiator Air Deflector/Baffle
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $34.08
OUR PRICE: $20.11
DESCRIPTION: DEFLECTOR

It's worth noting that this revised GM design hangs lower than the original 2 piece unit that the '88 and earlier cars came with. If your car is lowered, the deflector will get beat up a bit. I recommend also buying a skid guard from Lon at TDS.

He made one for me and it has helped save the deflector when going up driveways ...etc.

Pics are here:
https://www.thirdgen.org/techbb2/sho...hlight=air+dam

 

can anyone say.... what temp they were running before putting this on......how much cooler are talking.....mines missin as well

 

since no else responded to this I will for future users... I was running right @ 220 before.......and now I'm a coooool 180. this well worth the 15$ I paid on ebay

 

Sorry, lost track for awhile there... I have a 180* t-stat, so when I was in city traffic, it would get to around 190-200*, but at hiway speeds it would start to actually overheat. After I got it fixed, I rarely got over 180-190*, even on these 90-100* days here in FL.