All of those with the Borg worner 9 bolt rear end...

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Oct 6, 2001 | 05:12 PM

Cruz'N Bruz'R

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Joined: Sep 2001

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From: Cincinnati, OH

Car: 87 Iroc Z

Engine: 383ci.

Transmission: WC-T5

All of those with the Borg worner 9 bolt rear end...

Have you ever had trouble with the cover or the rubber plug leaking, especially under full throttle, how did you fix it?

Oct 7, 2001 | 11:10 PM

lonsal

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From: Hacienda Heights, CA

Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird

Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi

Transmission: WC-T5, WC-T5, 700R4

Axle/Gears: 3.45, 3.27, 3.27

Not under the conditions you describe. But I did seal mine with silicone gasket sealer when I filled mine once. I had a minor weep and didn't trust it.

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90 RS Convertible
Owner: Top-Down Solutions
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Oct 8, 2001 | 02:09 AM

Kevin91Z

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From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

Yep, mine leaked. Sealed it like Lon said and all is good now.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
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Oct 8, 2001 | 02:10 AM

JoelOl75

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From: PA

Car: 88 Firebird WS6

Engine: 350 TPI

Transmission: T56

Axle/Gears: 3.42

Mine leaked like a sieve. I tapped the hole for a pipe plug.... I believe I used a 1/2" or a 3/4" plug.... I can't recall

Oct 8, 2001 | 06:47 AM

ausrs

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From: New South Wales Australia

one thing with the 9 bolt ,the rubber plug gets hard with age ,heat etc
buy a new plug in aus they are only $3 bet they would not cost any more over there !

Oct 8, 2001 | 08:25 AM

Brian Shaughnessy

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From: Saugerties, NY, USA

Car: '89 Formula

Engine: 355 TPI

Transmission: T56

Axle/Gears: 3.70 9 bolt.

No problems with the plugs. Other leaks tho.
Had a cracked cover when I got the chicken - new cover was about $20. Now that cover has some nice dings and scraps inside of it when the 3.45's went boom.
Had problem the other day because some of the bolts backed out (ie: got loose) of the cover after the 3.70 change so I got a set of 5/16" coarse 3/4" long serrated flange bolts. Since I got 2 9 bolts I ordered a set of Mr. Gasket oil pan bolts for a mopar (pn 6088) that came with 20 of them for $9... that's almost cheaper than trying to find 9 at Home Depot.

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'89 Formula - Thunderchicken - 355 Vette L98/T-56/3.70 9-bolt/black/t-tops - the fun car!
'90 GTA - The GTA - 5.0 LB9/TH700/3.27 9-bolt/black/t-tops/tan leather - the cruiser.