Advice for a slip-fit cat that won't slip on?
Thread Starter
Joined: Dec 2005
Posts: 4,796
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From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Advice for a slip-fit cat that won't slip on?
Got a new cat in the hopes I'll get better emissions readings, but I had to hammer the old one off with a rubber mallet and the new is the same size as the old one but won't slip on. Tried using a rubber mallet but it's just not wanting to go. Total pain in the butt. Any advice?
Bigger mallet?
Bigger mallet?
Supreme Member
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Joined: Dec 2012
Posts: 1,184
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Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
Got a new cat in the hopes I'll get better emissions readings, but I had to hammer the old one off with a rubber mallet and the new is the same size as the old one but won't slip on. Tried using a rubber mallet but it's just not wanting to go. Total pain in the butt. Any advice?
Bigger mallet?
Bigger mallet?
91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!
Supreme Member
iTrader: (-3)
Joined: Dec 2012
Posts: 1,184
Likes: 1
Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
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Joined: May 2007
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From: Newport Beach, Ca.
Car: 1988 Iroc
Engine: 383 TPI
Transmission: 700r4
Axle/Gears: BW 9 bolt 3.27
Re: Advice for a slip-fit cat that won't slip on?
If your local muffler shop has an old pipe expanders that may work to open up the inlet on the cat.
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From: MN
Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
Re: Advice for a slip-fit cat that won't slip on?
Rent one of these for free from a local parts store?
(Don't have to expand it as much as bring it back to round.)
http://www.autozone.com/autozone/acc...ander/_/N-25fc
(Don't have to expand it as much as bring it back to round.)
http://www.autozone.com/autozone/acc...ander/_/N-25fc
Thread Starter
Joined: Dec 2005
Posts: 4,796
Likes: 16
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Advice for a slip-fit cat that won't slip on?
Thanks all for the ideas!
I took it to the local muffler shop and they did it for free. Got it on last night after fighting with it a bit. Turns out the new one is about half in longer than the old and it played havoc with my fitment! haha
I took it to the local muffler shop and they did it for free. Got it on last night after fighting with it a bit. Turns out the new one is about half in longer than the old and it played havoc with my fitment! haha
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