I believe the shock bodies are the same - to use the 2.5" diameter springs you would need to replace the spring isolators to fit the 2.5" vs the 3"
Below is when I was trying a 12" long, 2.5" dia, 275# spring that
@joeymt33 had loaned me to try so they will go over the shock body but without the isolators the spring is going to rub up against the shock body. I ended up ordering a 14" length spring as well for the front and back to get closer to the top of the shock body. it has been a learning experience for sure and While I have gotten to go test a couple of times to make sure everything is set right I am looking forward to Takeover to really feel it out. I also ended up ordering a 300# for the rear and a 250# for the front ….
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Here is a before and after and you can see the difference in preload
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