None_zero Posted April 6, 2021 Report Share Posted April 6, 2021 Is there any reason I couldn't replace the radiator in my 84 720 with say the radiator from d21 it looks like the dimensions would work as the rad from the d21 is roughly an inch smaller on every dimension, inlet and outlet are the same 1.375 inches 1 Quote Link to comment
Lockleaf Posted April 6, 2021 Report Share Posted April 6, 2021 Mounting would likely be your major hurdle. You might have to get funky. But if it fits in the space, and you can hook hoses to it, you should be just fine. I have a 1988 prelude radiator in my 510 wagon. 1 Quote Link to comment
None_zero Posted April 6, 2021 Author Report Share Posted April 6, 2021 Awesome thanks for the advice. The rad for the truck I have is a special order that will take time to get and it costs half again as much as the d21 rad 1 Quote Link to comment
Lockleaf Posted April 6, 2021 Report Share Posted April 6, 2021 I get that. I put 96 pathfinder brakes on my 720 for the same reason. Half the cost, immediate availability, and even added some diameter to the brakes 😄 1 Quote Link to comment
None_zero Posted April 6, 2021 Author Report Share Posted April 6, 2021 So the one I thought would work is too tall does anyone know a comparable model I could look for? 1 Quote Link to comment
NC85ST Posted April 6, 2021 Report Share Posted April 6, 2021 Do you have a radiator shop in your area? They should be able to re-core it without any problem, then you know you have the right radiator. 1 Quote Link to comment
None_zero Posted April 7, 2021 Author Report Share Posted April 7, 2021 Recore??? I've never heard of such 1 Quote Link to comment
datzenmike Posted April 7, 2021 Report Share Posted April 7, 2021 The top and bottom tanks are usually undamaged but the vertical tubes and fins are easily damaged specially by age. The tanks can be unsoldered and a put on a new core... 2 Quote Link to comment
NC85ST Posted April 7, 2021 Report Share Posted April 7, 2021 Your probably more familiar with the more modern radiators with the plastic tanks that have to be replaced if they break. One nice thing about this older stuff, a lot of it can be rebuilt. 1 Quote Link to comment
datzenmike Posted April 7, 2021 Report Share Posted April 7, 2021 A buddy worked with the 'new' then GM rads with plastic tanks. The aluminum core is crimped on. He figured you could uncrimp and change the tank 1 maybe 2 times then the aluminum would snap. 1 Quote Link to comment
Charlie69 Posted April 8, 2021 Report Share Posted April 8, 2021 Are the replacement aluminum core plastic tank radiators obsolete now. I have been running one of these for several years now in my 86 2wd King Cab. Z24 radiator is the same. Quote Link to comment
bottomwatcher Posted April 8, 2021 Report Share Posted April 8, 2021 I am running an all metal autozone stock 1982 720 with my KAe no issues. I don't think it was over $140 brand new maybe less. 3 years all good 1 Quote Link to comment
Charlie69 Posted April 8, 2021 Report Share Posted April 8, 2021 Autozone 1984 2wd Z20. https://www.autozone.com/cooling-heating-and-climate-control/radiator?filterByKeyWord=radiator&fromString=search&isIgnoreVehicle=false Quote Link to comment
datzenmike Posted April 8, 2021 Report Share Posted April 8, 2021 Widen your search to include a Z24 rad. That would work amply on a smaller Z20. 1 Quote Link to comment
NC85ST Posted April 8, 2021 Report Share Posted April 8, 2021 14 hours ago, datzenmike said: A buddy worked with the 'new' then GM rads with plastic tanks. The aluminum core is crimped on. He figured you could uncrimp and change the tank 1 maybe 2 times then the aluminum would snap. That’s a new one for me. Did not know the newer radiator’s could be rebuilt. 1 Quote Link to comment
bottomwatcher Posted April 8, 2021 Report Share Posted April 8, 2021 I looked it up and only saw people trying to fix cracked tanks. I doubt replacing the aluminum with the. Old plastic would make sense. 1 Quote Link to comment
Charlie69 Posted April 9, 2021 Report Share Posted April 9, 2021 For some reason at Autozone the 84 Z20 radiator is more expensive than the 85 Z24. Autozone does show a listing for both radiators. Quote Link to comment
datzenmike Posted April 9, 2021 Report Share Posted April 9, 2021 The Z20 option is more rare and it may simply be a single core vs. dual core for the Z24. 1 Quote Link to comment
Charlie69 Posted April 9, 2021 Report Share Posted April 9, 2021 If that is the case I would run the cheaper Z24 radiator as they bolt in the same. Quote Link to comment
datzenmike Posted April 9, 2021 Report Share Posted April 9, 2021 Zackly, I would think so. 1 Quote Link to comment
None_zero Posted April 9, 2021 Author Report Share Posted April 9, 2021 On 4/8/2021 at 4:07 AM, Charlie69 said: Autozone 1984 2wd Z20. https://www.autozone.com/cooling-heating-and-climate-control/radiator?filterByKeyWord=radiator&fromString=search&isIgnoreVehicle=false Charlie I am having trouble with this link what is the part number you are linking here? 1 Quote Link to comment
None_zero Posted April 9, 2021 Author Report Share Posted April 9, 2021 16 hours ago, Charlie69 said: For some reason at Autozone the 84 Z20 radiator is more expensive than the 85 Z24. Autozone does show a listing for both radiators. When I search auto zone the only radiator it pulls up for the z20 is listed as unavailable 1 Quote Link to comment
Charlie69 Posted April 9, 2021 Report Share Posted April 9, 2021 (edited) Just click on the link. Duralast Radiator A692 Part # A692 SKU # 234005 Edited April 9, 2021 by Charlie69 Quote Link to comment
None_zero Posted April 9, 2021 Author Report Share Posted April 9, 2021 Even when I go pull it up for the z24 they show it available for delivery until you try to order it and then it says no longer available 1 Quote Link to comment
Charlie69 Posted April 9, 2021 Report Share Posted April 9, 2021 It is showing up as not available today Quote Link to comment
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