AC-Delco Lubricant 10-4057
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Joined: Oct 2021
Posts: 750
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From: Windsor, On
Car: 1984 Trans AM
Engine: 305
Transmission: 700-4r
Axle/Gears: 3.23
AC-Delco Lubricant 10-4057
Any of u people use that lubricant on the weatherstripping especially for the t-tops?
I read somewhere that the Corvette owners recommend it. good or bad?
I read somewhere that the Corvette owners recommend it. good or bad?
Joined: Sep 2004
Posts: 362
Likes: 94
From: Pearland, Texas
Car: 1985 Firebird & 1992 Camaro B4C 1LE
Engine: 310 LS1. & 305
Transmission: TH350 & T5
Axle/Gears: 9" 3.73
Re: AC-Delco Lubricant 10-4057
I always used Sil-Glyde Silicone Lubricant on our t-top seals on the Hurst hatches on our 77 T/A SE. Never had a water leak! I used Sil-Glyde since it contained no petroleum distillates that other silicone lubes have. Not sure about the AC stuff. Squirt a bit out on a cloth rag and rub a fine film over the seal surfaces.
Joined: Aug 2013
Posts: 4,845
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From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: AC-Delco Lubricant 10-4057
I've been giving some thought to treating my t-top (and other door and window) seals with something. When I worked at a Chevy dealer (30+ years ago) we always used a silicone lubricant on seals. Used it on Camaros with t-tops and M/L van sliding door weatherstrips, among others. Looks like 303 also makes a product for seals. I'll have to try one of these.
Thread Starter
Senior Member
Joined: Oct 2021
Posts: 750
Likes: 117
From: Windsor, On
Car: 1984 Trans AM
Engine: 305
Transmission: 700-4r
Axle/Gears: 3.23
Re: AC-Delco Lubricant 10-4057
Dynodave43;
I have used 303 in the past on vinyl seats. Will give your suggestion a try. Tkx
I have used 303 in the past on vinyl seats. Will give your suggestion a try. Tkx
Thread Starter
Senior Member
Joined: Oct 2021
Posts: 750
Likes: 117
From: Windsor, On
Car: 1984 Trans AM
Engine: 305
Transmission: 700-4r
Axle/Gears: 3.23
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