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 Post subject: welding powerglide
 Post Posted: Sat Apr 28, 2012 5:06 pm 
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Location: lawton, MI
Has anyone ever successfully welded a crack on a powerglide case? It’s the typical crack in the reverse circuit.


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Joe

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 Post subject: Re: welding powerglide
 Post Posted: Sat Apr 28, 2012 6:21 pm 
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I've never seen it done and I bet it wouldn't be a permanent fix. My advice ... get another case.

Rick


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 Post subject: Re: welding powerglide
 Post Posted: Sat Apr 28, 2012 8:48 pm 
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I agree with rick

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 Post subject: Re: welding powerglide
 Post Posted: Sat Apr 28, 2012 8:51 pm 
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My advice is put a mid plate in the car! Then use a rubber mount at the tranny. Seen I don't know how many of these cases crack and they've all been in stock front frame type cars without a mid plate.

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 Post subject: Re: welding powerglide
 Post Posted: Sun Apr 29, 2012 8:59 am 
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Ken car has front plate, mid plate and rubber rear mount with a 12 point roll cage
The bell housing is fine it cracked behind the reverse piston at about 8-9oclock looking at it from the rear.
The Trans case was in the car for 7 years.
The problem started last year a vibration developed in first round I could not find the cause and was wining rounds so I continued.
Went red in the forth round as the Trans brake now had an extra dump circuit the cracked case.
Vibe was from a wore out bushing in the gov support and tail housing.
I have another case to use but I also have two with this same crack that I thought about saving
I have seen some circle track friend’s successfully weld bell housings before

Joe

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 Post subject: Re: welding powerglide
 Post Posted: Sun Apr 29, 2012 11:35 am 
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The case is real think in that area and you got to think about it warping.
I have heard it could be from the engine being idled too high then putting it into reverse
causing the tires to jerk a little when going into gear. Just something I heard.
I went to an aftermarket case to hopefully eliminate the issue.

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 Post subject: Re: welding powerglide
 Post Posted: Sun Apr 29, 2012 12:41 pm 
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wrightway wrote:
The bell housing is fine it cracked behind the reverse piston at about 8-9oclock looking at it from the rear.

Joe


OK, sorry, my bad as I didn't pick that up when I read your post. I must have a double case of CRS, ie, Can't Remember s**t and also Can't Read s**t! ;-)

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 Post subject: Re: welding powerglide
 Post Posted: Sun Apr 29, 2012 12:53 pm 
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I have had one case do that also but it had about 15 years of mid to low 9 second runs with short times in the mid 1.20s...
A couple of things to do,,Have your drive shaft checked for straightness and balanced, Also with your shaft O:) all the way in.....your trans it should only come out 5/8 to 1" at ride height when it is bolted to the yoke on the rear, and like you said tail shaft bushing and of course make sure that the yoke is in good shape....

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