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Quest for improved 4th gen Fbody drivability


Gav'sPurpleZ

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Exhaust work is done. The Kooks Y hugs the floorboard better now and doesn't hit, and I can clear my garage entrance. The tips and fixing the Kooks to Magnaflow leak has cleaned up the sound. Those Magnaflow cannons projected the sound like, well, a damn cannon. The quad tip corsa clones have a punchier sound with less blasting and have completely changed the tone of the exhaust. They need to be raised a little. It's also nice they make the rear look wider.



Also, I wanted some new floormats so ordered these, which seem decent enough and were more affordable than the others but feel of high quality.

Any sound clips after the exhaust update ?
 
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Bru

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Right now, the plan for 2020 is to get the oil leak fixed - I'm thinking it's either the pan, rear seal, or both. Still considering a cutout, too. And I'd like to spiffy it up some and get the wheels re-polished and spend some time with paint correction.
 

Gav'sPurpleZ

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thanks for the clips. I've been looking up exhaust stuff.
I know the clamp for the Y to I pipe needs to be replaced and I think the thunder racing bushing for the Y pipe needs to be adjusted because the exhaust hits the floor board here and there.
thanks to the first shop, WTF

I'm going to talk to HILROD HILROD to see what can be done. I've seen some true dual setups but I do not want to sacrifice ground clearance. I also do not want to spend money and be unhappy with the sound or exhaust note.
I spent too much time yesterday @ work looking through LS1tech threads.......
 
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Bru

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thanks for the clips. I've been looking up exhaust stuff.
I know the clamp for the Y to I pipe needs to be replaced and I think the thunder racing bushing for the Y pipe needs to be adjusted because the exhaust hits the floor board here and there.
thanks to the first shop, WTF

I'm going to talk to HILROD HILROD to see what can be done. I've seen some true dual setups but I do not want to sacrifice ground clearance. I also do not want to spend money and be unhappy with the sound or exhaust note.
I spent too much time yesterday @ work looking through LS1tech threads.......
Once the car is out, let’s meet up and go for a ride. Hear it in person.
 
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I dropped by my brother’s place yesterday to do a birthday burnout in front of his house and only one wheel spun. I think the auburn diff in this 98 is on its way out. I believe it’s a clutch pack style versus the later year Torsen. Add it to the list :rofl: Still drives fine otherwise so might not worry about it until it breaks or if a deal pops up on a replacement.
 

greasy

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I dropped by my brother’s place yesterday to do a birthday burnout in front of his house and only one wheel spun. I think the auburn diff in this 98 is on its way out. I believe it’s a clutch pack style versus the later year Torsen. Add it to the list :rofl: Still drives fine otherwise so might not worry about it until it breaks or if a deal pops up on a replacement.
Sounds like it is time to go with a crazy custom 9" ;)

That stinks though!
 
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That would be sweet. This one’s got fresh fluid and friction modifier (all GM stuff) but it isnt the first time it’s given me a peg-leg burnout. When I was last at the track it was also hit or miss, which prompted the fluid change in the first place. This was just the first time I’ve given her a good ole brake torque (or rather an attempt at one :rofl:) burnout since then.
 

Lead Pipe

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I got a 3.73 10 bolt that's coming out of my car pretty soon. Just saying.
 

lastls1

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I dropped by my brother’s place yesterday to do a birthday burnout in front of his house and only one wheel spun. I think the auburn diff in this 98 is on its way out. I believe it’s a clutch pack style versus the later year Torsen. Add it to the list :rofl: Still drives fine otherwise so might not worry about it until it breaks or if a deal pops up on a replacement.
Have a 10 bolt sitting in my garage on 2 stands. Nothing wrong with it, took it out to go 12 bolt for racing.

3.42 gear with girdle.

Located in Plainfield. Come get it for $100 bucks or some handles of good vodka.




 

v6buicks

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Have a 10 bolt sitting in my garage on 2 stands. Nothing wrong with it, took it out to go 12 bolt for racing.

3.42 gear with girdle.

Located in Plainfield. Come get it for $100 bucks or some handles of good vodka.




Limited slip?
 

Thirdgen89GTA

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3.42 should have come out of an M6 car, so its probably Auburn.

SLP was changing them from auburns to Torsen's for some of the 4th gen models, but I can't remember which.

Mine in the GTA is a Torsen unit out of a 4th gen.
 

lastls1

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3.42 should have come out of an M6 car, so its probably Auburn.

SLP was changing them from auburns to Torsen's for some of the 4th gen models, but I can't remember which.

Mine in the GTA is a Torsen unit out of a 4th gen.
02 trans Am. It’s not original. It was totally changed by GM at 40k miles. This unit probably has 32k miles on it

Then I had the gear changed when I got the car. Before the 12 bolt
 
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Thanks for the offers dudes but then I’ll be the one with an entire extra shitty 10-bolt that I can’t get rid of :rofl:
 

Bob Hope

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Thanks for the offers dudes but then I’ll be the one with an entire extra shitty 10-bolt that I can’t get rid of :rofl:
Plenty of recycling places would take it for free.
 

Lead Pipe

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Thanks for the offers dudes but then I’ll be the one with an entire extra shitty 10-bolt that I can’t get rid of :rofl:
Got a 9" housing and torque arm too ;). I'm considering parting my car out.
 
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After further testing, I think it's likely that the diff is worn, but not broken, which makes sense for an Auburn unit that has those cone clutches that wear. It seems big shock can overwhelm the LSD, but laying into it, versus a brake torque, seems to lay down twin stripes pretty well.

 

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