84 forks on a 78 390

Is anybody familiar with this particular swap. I have a 1978 390 with a stock front end. A friend of mine found me forks, triple clamps, and the front axle from a 1984 CR 250. The axle set up looks different, but I’m told everything will bolt right onto my 78 And I can use my Original wheel, hub, backing plate. Anyone out there done the same swap?

yes ! no problem !

All straight forward as far as the bolt-on goes. But then you'll have a 12" travel fork on a bike that came with a lot less than that. If you can find some WR damper rods that will get you down to 10.25" which, although closer, is still too long for a 78. You can't just raise the forks in the clamps without checking that the wheel doesn't bottom into the fender. Can you say... ENDO? Just be smart and do the swap with your eyes open.