That sounds really old. I can relate to your problem. I had a 30+ year old one-piece stacked W/D that finally died. After much research I bought a Whirlpool FL set. What a difference! Sometimes new things can be better than the old ones. If you can afford it I recommend getting a new set that meets you particular needs. Your clothes will be very happy.

I have LG washer and dryer stacked. The washing machine is WM2301 with 4.2CF capacity and an internal heater but otherwise it has no fancy features like steam, etc. I am very pleased with this set. I owned 3 other front loaders before and this is by far the best of them. The FL I owned most recently was Whirlpool Duet Sport without a heater which was still working fine after 4 years of ownership but I decided to upgrate to LG FL with a heater. The LG is a lot more stable, has bigger capacity and the internal heater makes a huge difference in washing ability. I paid $1K for the pair on a great black Friday special at Best Buy.

The biggest problem you may or may not have is the construction of your home. There is always going to be some vibration from a stacked set, much less a regular side by side. If everything is very solid, you are probably ok but if the structure is at all bouncy it will translate into the walls and be loud. There are any number of things you can do, and there are any number of options for washers but the structure will be the limiting factor.

@alex - Thanks so much Alex. It was done for sale and proved very effective. No hood in that apartment. One reason I stayed with a non-pro range. Had to open the window over the sink. I didn't do much heavy cooking in there but it worked for most things. And in NYC it's so much easier to live on take out. That condenser dryer did a great job. There were only 2 things about it. One, was that there was an interior grill/lint trap that had to be removed and cleaned periodically. The cleaning was tedious. Second was that the door to the closet had to be left open while the dryer was running. It created a lot of heat. It ran a little longer than the others but not so much longer that I remember. But that sure beat the years of lint we found in the wall when we removed the old dryer that been put on a wood shelf. We were lucky there hadn't been a fire. I've had Bosch, Miele and Asko dryers. IMO, while the Bosch heats things up more than the others, it does a great job. I would get another Bosch pair for an apartment without hesitation. Thing is, with the washer, you don't get the precision heater. So you don't get that extra muscle on the whites. But the drum capacity of the washer & dryer are slightly larger than the others. But I'd look at the Electrolux pair today since those are new to the market. I haven't seen it or used it but I think Larsi said the Elux compact has a heater.