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« 1 ... 82 83 84 (85) 86 87 88 »

Re: Stewart
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Stewart Ballard
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A possible cause and solution to the problem.

Many, many moons ago, someplace in my blog, I made the decision to purchase a conversion plate from Bendtsen’s to allow me to use a GM 700R4 transmission instead of the original. I was young and naive and the 700R4 just made a lot of sense to me at the time. In retrospect (even before this problem) I wish I had gone ahead and had the original rebuilt or done it myself.

So back to the problem of the body being too far to the rear. Somewhere in the instructions from Bendtsen’s or their website they mentioned that I may need to take a hammer to the body where the trans meets and the body meets but when we put the body in place a few years ago all the mount holes aligned so we assumed the hammering was not going to be necessary. Besides the instructions did not really say where exactly to hammer. It just said hammer for clearance. We would have had to place the body and find where it contacts the body then remove it, hammer it and then place it again.

The image below (it was a tight fit) shows the very top of the conversation plate and the 700R4. They may not appear to be touching but they are. There is no way that body is going to move forward like it is now.

When I first realized this I decided that a large rum drink was in order. I walked into the house, dejected and trying to figure out the lesser of two evils. Should I...
Raise the body and beat the hell out of that spot so that it sits right or
Remove the 700R4 and the conversation place and go with the original trans.

Half way through my rum drink I remembered how I replaced the fuel pump in my old Chevy Squarebody truck a few years ago. I just cut a hole in the cab floor to gained access to the fuel pump without having to drop the fuel tank. It saved me days of work.
So, now I am thinking maybe, at this point, my best bet is to simply cut a hole in the floor where the trans and the underside of the body meets to allow some clearance and move the whole body forward the inch or so that is needed. I can easily patch the hole again when everything is in place.

What do you think about that idea?
In the future I may go ahead and rebuild the original trans and mount it but that will be after the car is on the road and I have nothing else to do.

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Posted on: 9/21 16:24
Stewart Ballard
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Re: Stewart's 1955 Packard 400
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John
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Sounds like a better plan than beating the body in. Cut it out for clearance and fab a patch panel to clear the adapter. I wonder if a clearance problem would be had using the 200R4??

Posted on: 9/21 17:06
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Re: Stewart's 1955 Packard 400
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kevinpackard
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It seems like it would be a lot of work to pull the body off and gain access to that area.

Cutting and welding in a new patch can certainly be done. Three concerns about that would be: 1.) how would it look under the carpet afterwards, 2.) welding sheet metal is no fun, and 3.) would you want to do any sort of protection on the underside of that patch afterwards....it will be hard to access.

Either way it's going to be some work. But it sounds like you may have found the problem, and that's good.

-Kevin

Posted on: 9/21 17:54
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Re: Stewart's 1955 Packard 400
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Stewart Ballard
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I have been working on this car for nearly 10 years. I am not afraid to weld on sheet metal anymore. Besides I probably would not weld it. That black coating on the underside of that area will burn. Ask me how I know that.

I really don't have a choice but to try cutting it. I am guessing the opening does not need to be any larger then about 2" x 2". I can maybe use fiberglass or something similar to re-close the hole.

From looking at the images I posted earlier from the inside of the fender. I can probably bump the radiator support back a little and get about a 1/4 ". There is plenty of room for the fan on the other side of it.

Posted on: 9/21 19:49
Stewart Ballard
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Re: Stewart
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1SG
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Stewart, We put a 700r4 in our '55 Clipper. Body wise, I do not believe there is that much of a difference between the two. Let me find our photos of the swap and I'll post them. We didn't have this problem rather a problem with the single exhaust.

But I do have a question about the shift linkage. Did you use a rod linkage or did you go with a cable. And who made the linkage for the 700r4?

Posted on: 9/21 20:06
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Re: Stewart's 1955 Packard 400
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Stewart Ballard
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1SG, I don't have the the steering column in the car yet so have not had the need to figure out the linkage yet.
However, I will say that there were a lot of different linkages used on 700R4s in the years they were used on various cars and trucks. I robbed several different parts off multiple 700R4s while I was parts shopping at the local pull-a-part. I am hoping I can piece something together from those.

Posted on: 9/21 20:47
Stewart Ballard
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Re: Stewart
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Stewart Ballard
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I made a little progress this afternoon on getting all the fender bolt holes to align.
I loosened up the radiator support and shifted it toward the engine.
That got me maybe 3/8 “ and cut about half the distance needed.
Pictures 1 and 2 below are before and after shots of where the fender bolts to the firewall.

I crawled inside with a right angle cutter and cut through the transmission hump to expose top of the trans as I discussed yesterday (see picture 3). I underestimated the size of the hole needed. 2” will be wide enough but it will not be long enough. The body is laying on the entire length of bell housing (not just the top of it). I am going to have to cut it all the way down to where it levels off, probably 6 to 8” total. I’ll finish that tomorrow.

I crawled under and loosened up all the body mount but there is no way little ole me is going to push the body forward the last ½” or so that I need.

I guess when the rain stops this week I will take the whole car off the blocks and put it on the ground and chock the tires real good. Then I will pull my truck in the door and connect the two of them with chains & come-along and try to drag the body forward as far as needed.

This will be fun.

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jpg  RearBoltHole_After.jpg (500.62 KB)
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jpg  CuttingTheHump.jpg (704.64 KB)
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Posted on: 9/22 18:42
Stewart Ballard
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Re: Stewart
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HH56
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How much of the adapter is sticking up thru the hole? Am just curious as to how much difference there might be in your installation compared to the prototype when Bendtsen designed the kit.

I kind of thought not much was needed to make things fit if it could be done by a hammer and don't remember anyone else that has done the conversion saying any extra work was done. Did any drawings or instructions come with the kit mentioning dimensions or even show where an installer might need to modify the body?

Posted on: 9/22 19:05
Howard
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Re: Stewart's 1955 Packard 400
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Stewart Ballard
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I found the updated instructions on there site and it does say "There should not be any cutting or welding required, but some areas may need slightly enlarged with a rubber mallet, or equivalent."

Unfortunately I installed it all differently. The engine and trans were already on the frame when I dropped the body in place.

When all the body mount holes aligned I assumed all was good to go...until this week when I tried to mount the fender.

The trans is not sticking up thru the hole right now. If I get the body to move forward it may stick out then.

Posted on: 9/22 19:24
Stewart Ballard
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Re: Stewart
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1SG
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Stewart, I am curious, how did you mount the trans crossmember that comes with the kit. We spent a lot of time fitting the crossmember so that everything fit without any holes being cut. We did slightly modify the bracket on the crossmember so that the original 700r4 mount fit perfectly. I will send better fotos tomorrow.

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jpg  DSCN0188.jpg (298.79 KB)
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jpg  DSCN0189.jpg (334.41 KB)
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Posted on: 9/22 20:14
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