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TR4/4A Body Tubs?

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No, at a minimum there are differences for the parking brake.
 
And of course the location of the side lamp and its trim adds some additional holes in a 4A. As for bonnets - not even all TR4s were the same and the bonnet buffers changed for 4As which may have changed the corner of the bonnet.

But that is all pretty small stuff and if you are looking for a specific panel may have no relevance.
 
And three more items. 1) is the different door closing straps. Therefore the holders on each the door and the body are different. 2) In the rear of the cockpit -- the raised portion has some holes in it that a surrey top mounts onto. The second hole from the rear of the door is in a slightly different location than the TR4A. 3) The hood locating buffers are like the TR6 on the late 4's and 4A's so the hood has an inverted cone to accept that cone buffer instead of the flat buffer like a TR3. Again not to big of a deal but trying to modify the door closers might be the only one to cause some problems unless you get the doors to match the body.
Charley
 
There may be a sheet metal difference underhood at the top of the spring tower as well. When I was looking for a tub I seem to recall noting that.
 
Not to mention TR4 and TR4A frames are completely different so mounting points may also differ.
 
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