Is there any way to tell a rear disc vs. a rear drum prop valve?
Thread Starter
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Joined: Apr 2001
Posts: 225
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From: CT
Car: 1992 Z/28
Engine: 305
Transmission: Auto
Axle/Gears: 2.73's I think
Is there any way to tell a rear disc vs. a rear drum prop valve?
Just like the title, looking to see if there is a way to confirm it is rear disc just by looking at it. Also, does anyone know the pressure difference between the 1LE and non-1LE proportioning valves for rear discs?
Thanks
Jeff
Thanks
Jeff
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Joined: Mar 2001
Posts: 6,420
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: Is there any way to tell a rear disc vs. a rear drum prop valve?
You can't tell by just looking at them, the differences are all internal.
Ed
Ed
Thread Starter
Member
Joined: Apr 2001
Posts: 225
Likes: 5
From: CT
Car: 1992 Z/28
Engine: 305
Transmission: Auto
Axle/Gears: 2.73's I think
Re: Is there any way to tell a rear disc vs. a rear drum prop valve?
Well crap. OK, has anyone ever done any testing with the 1LE vs. non-1LE to see what the pressure difference was? Also, what visual differences are there internally? I'm just nervous about buying a used one that someone SAYS is from a disc car, installing it, then having a problem.
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