fork steerer compatability
If your headtube is 34mm in diameter then only EC34 Headset can fit in.
This means that you can only go as much as 1-1/8 inch fork.

Unfortunately there is no conversion kit that I have heard of for adapting 34mm headtube to 1.5 inch steerer.

If your headtube is larger than 34 mm, you might have a chance. Take a look at this doc: http://www.hopetech.com/wp-content/uploads/2014/03/HOPEHEADSETS2011Web.pdf