n-scale lifelike FA coupler ?

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i have a couple of AB sets of these that i have installed microtrains on. the front coupler is a non-working knuckle couple from lifelike that is way too low to use. does microtrains make a replacement that will be the correct highth? anyone have this problem? other than this, i cant find anything wrong with these engines. mine run just as smooth as my kato set and the microtrains ft set as well. may lack a little detail, but definately worth the cost, imo. they are heavy and will pull alot of cars. thanks....