Just picked up a clean 67 Wagon with a 283/PG, will a 350/TH350 swap in without driveshaft modification. The 350/350 is out of a 72 Impala. In fact now that I think about it the trans might even be a TH400.
Since I don't subscribe to automatics, I'm not that familiar with T-350s, although I do know that there are 2 different length tail housings. If you have the tailhousing on your T-350 that is the same length as the P-glide, then your 350/350 should be a drop-in swap for the 283/glide. But if it is a T-400, you for sure WILL have to change to a T-400 yoke on the driveshaft and you may need to shorten the driveshaft for a T-400.
I got my 400sb from a 72 Impala 4 dr and it had a th350 behind it. it was the long tail housing 9" I beleive and had a real strange flange hook up at the differential end like on a 4x4 transfer case. I saved the driveshaft and the tube part is actually shorter than the tube on my 64. The yoke is the same as on the PG. If it is the 6" tail housing it will fit the same as the PG. The engine is a bolt in.
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the impala will definately have a long tail trans, and will not be a direct swap in place of the glide. You can either put in the long tail trans and shorten the wagon drive shaft, or get a short tail trans and you will not have to mod your driveshaft. You can do it either way, its up to you.
just check the tail for either a 6" or 9" tail the 6 will fit the 9 won't usually used in trucks, i can't see spending $150 to cut/balance the driveshaft just for that 1specific tranny not to mention the TH350's are a dime a doz.
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