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Discussion Starter #1
Alright..

First, might I say, "Doh!" :bangwall:

Okay, so I bought a set of underdrive pulleys for my 3.8... heh... problem is, I failed to notice I was looking at 3.8L V6 for the '96 Mustang. Umm... is this going to be a problem? I mean, it looks like it'll fit... looks like the same piece for listed under the T-Bird 3.8 Underdrive pulley kit... should work still.... right? Ah c'mon guys! Tell me it'll work! Pleeeeeze! I don't wanna send 'em back! I don't wanna!

*sigh* Ah well... at least I didn't get 'em for a 3.8 Firebird... lol...
 

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they will work with no problem... just remember you will need a shorter belt with the underdrive pulley
 

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Johnny Bling Bling
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yeah, what john said!
 

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YES a underdirve will increase back pressure and b low out head gaskets!
 

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Discussion Starter #8
uhh... how much shorter belt? What kind of belt would I ask for if I went to autozone and asked for one?
 

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how in the hell will an underdrive pully increase backpressure and blow a headgasket? Explain this one to me
 

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Destructor90 said:
YES a underdirve will increase back pressure and b low out head gaskets!
Nominated for "Most Uninformed Post of the Day".
 

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The Parts Guy
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jimmy_04 said:
I second that nomination. If my opinion matters lol.
It doesn't.






Just kidding. You left yourself open for that one. :D


-Rod
 

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Full Metal
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Destructor90 said:
YES a underdirve will increase back pressure and b low out head gaskets!
:uppoint: ha, ha, dood, you're funny...:rofl:


you were kidding, right, :leftright
 

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yeah, there's no reasonable way an underdrive pulley could increase backpressure, unless you are thinking of a supercharger pulley, which is technically an overdrive pulley. And that increases backpressure because the boost is raised and the blower is pushing more air into the same space. But this is not a supercharged car we are talking about. And usually overdrive SC pullies dont blow HG's anyway.
-Thomas
 

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Then ill leave this post with DOH!!!!!!!!! :D
 

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Discussion Starter #17
Okay! These underdrive pulleys will NOT work. There are 4 holes outlining the pulley that do not match up to a '96 T-Bird crank pulley and/or harmonic balancer.

Also, the harmonic balancer looks to be 1 piece with the crank pulley. I think I'm gonna need a little more 411 before I go trying to strap a '96 Mustang 3.8 underdrive crank pulley to a 96 3.8 T-Bird.
 

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then you didn't get a 96 underdrive.. you got a 99+ balancer
 

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Discussion Starter #19
If you'd like the invoice and part # you can look it up. It's a 93-98 3.8 V6 Mustang Underdrive pulley set (1-25% reduced crank pulley and 1-alternator pulley).
 

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The Parts Guy
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The pulley will only line up on the HB one way. You have to rotate the pulley on the HB to get all four holes to line up.

-Rod
 
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