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Old 11-24-2010, 12:17 PM   #1
1of1547
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Default Powerglide are not streetable???

I've always been told that Powerglides are not streetable. Why aren't they. They still have a 1:1 high gear like the T350 and T400. Or is it just a bunch of BS?
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Old 11-24-2010, 01:23 PM   #2
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Default Re: Powerglide are not streetable???

im sure the millions of cars that came from GM with a glide would tell you differently
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Old 11-24-2010, 01:36 PM   #3
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Default Re: Powerglide are not streetable???

I get that a lot too. There are many uninformed folks out there is all I can come up with.

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Old 11-24-2010, 01:45 PM   #4
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Default Re: Powerglide are not streetable???

I think that the fact that GM quit making them tells otherwise. Whether or not a PG work for a street car has more to do with how much rear gear you need to get it to 60'. If you don't have a ton of torque you will need more gear. I don't see it being a good idea for me because I do a lot of interstate driving. I am able to run 3.08 gear and with a 2.48 first gear it works at the track. Some low power turbo cars like mine slow down going to a glide unless they put more rear gear in it. You may also have to run a looser converter with a 1.76 first gear.
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Old 11-24-2010, 01:47 PM   #5
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Default Re: Powerglide are not streetable???

We all have different ideas about what "streetable" means too. People have argued what a street car is for years too.
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Old 11-24-2010, 02:00 PM   #6
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Default Re: Powerglide are not streetable???

Mild 406 @ 3000 lbs with a 1.76 glide, a 3.70 gear and a 31 inch tall tire. No problems in my little truck.

Plus it has a pretty stout Chance Converter in it. 3600 on foot brake.
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Old 11-24-2010, 05:01 PM   #7
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Default Re: Powerglide are not streetable???

4.56 gear and put it in 2. Not for the x-way, but fine for local street driving.
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Old 11-24-2010, 05:05 PM   #8
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Default Re: Powerglide are not streetable???

hell i love not having to shift between lights in town
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Old 11-24-2010, 05:44 PM   #9
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Default Re: Powerglide are not streetable???

it's a bunch of BS. Glides are perfect for the street... Obviously if you have a 5000# car with 20 hp it might not be the best for your combo..
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Old 11-24-2010, 05:53 PM   #10
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Default Re: Powerglide are not streetable???

I got a glide in my 86 coupe, 4.10s on the bypass at 70mph is not a problem. Turns around 3k. I actually believe I need more gear and a bigger converter.
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Old 11-24-2010, 06:02 PM   #11
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Default Re: Powerglide are not streetable???

This has been on my mind the last few months as well. My TH350 would be going in it's 4th rebuild now (3rd shop) but I'm going PG in a few months. I was on the fence between that and the TH400 but I'm going glide. Less power to turn it and if you build it full out later on you most likely will want a glide anyway. (There's more ppl running a PG on the street than you think, just poke around on the forum here & you'll see).
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Old 11-24-2010, 06:09 PM   #12
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Default Re: Powerglide are not streetable???

GM stopped the glide for a 3 speed for exactly the same reason they stopped the 3 speed for a 4. Market forces demanded more flexibility with the product. The glide is an excellent box if you want 2 speeds. A TH400 is great if you want 3, a 4L80 if ............ see a pattern here? A part being superceeded doesnt render it crap it just opens your options.
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Old 11-24-2010, 11:55 PM   #13
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Default Re: Powerglide are not streetable???

They are very streetable. I have several guys with glides and a gear vendor OD unit giving them a 4 speed trans if they split shift them.


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Old 11-25-2010, 01:00 AM   #14
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Default Re: Powerglide are not streetable???

People who think the glide isn't streetable normally think a TH350 or TH400 also isn't streetable because none of these trannys have an OD. We survived for many decades without OD gears.

I'd say if you were running 26" tall tires and 4.56 gears, no none OD tranny will be fun to drive on the highway but just because it cruises at high rpms doesn't mean it's not streetable.

People just seem to think that you have to cruise down the highway at less than 2000 rpm to be streetable.

I like the glide in my race car. If I had a hot rod, any 3 speed would be fine. For my daily driver and highway driving, I'll take something with at least one OD gear unless oil drops back under $20/barrel.
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Old 11-25-2010, 02:19 AM   #15
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Default Re: Powerglide are not streetable???

Quote:
Originally Posted by 1952_chevy_panel View Post
I got a glide in my 86 coupe, 4.10s on the bypass at 70mph is not a problem. Turns around 3k. I actually believe I need more gear and a bigger converter.
You must have 32" tall tire and a lock up converter. A 3 speed would need a 2.90 gear to give the same 1st gear overall ratio. 2nd gear would drop slightly less rpm than high gear/4.10 gear with a glide and 3rd would be the same as a .71 OD.

2 and 3 speeds are streetable, but a 3 speed is more street friendly IMO.
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