Cliff, I never did BJ on one as new as a 140, so can't say for sure.
But looking at diagrams of the suspension and the part, it appears pretty easy.
You will still need a generic puller to get the old BJ loose, but the installation looks very easy, just insert and bolt on. You can find the torque specs in the archives here, just do a search.
I hope someone who has done this on a 140 will add some good tips.

DG