I'm not sure what yer after Michael,,the trigger from track will fit(they allways need a bit of fileing and fitting though!)(aftermarket stuff right?),,
,,but to base the question of cross fit is a tough one.
The double-set trigger your asking about is only best used with a "Lock" that has a "fly detent". And only if the "cam's of the trigger are a proper fit to the rifle lock in referance.(most them t/c -lyman are) You can go back to tow and look at lock's too see if your rifle has that and/or compare photo's to "in-hand".
I guess what us common folk don't know about is that "early/late model" stuff about the lyman trade rifle. GPR/GPH no problem,, same.
Best bet is to go back to the Track of the Wolf site,,find the "contact us" link and ask them.?! it's free.
Honest,,fer $12.99 and shipping, fer the trigger your asking about, how can ya go wrong? and your right,,I wouldn't wanna lose $15 if I didn't know either...so you just ask summore!:)
luck 2 ya,