Hello, I'm in the process of changing the lift pump on my 83 Sub. 2WD 6.2 with a Banks turbo.

There is not very much room to work up there with the cross over pipe in the way. I managed to get the old pump off with some cramped fingers and a few choice words.

My question is, will the pump bolt up correctly if the pump arm is not properly engaged with the rod?

I can fit the tip of my finger between the the rod and the backing plate. Is that enough room to slip the pump arm in, or will I need to remove the plate and use grease on the rod?

Thanks