clutch / tranny

[Big D Squared]

Idk what's been the problem with my car I put my ws6 in first and drives good until I press down on the clutch to go into second when I press the clutch down when in first I feel this buck and clunk sound it only happens when I press the clutch down fast but when I press it slow it's like it catches up to itself and don't do the buck or sound also my first gear sometimes is really hard to put it In to its like I am hitting a brick wall and when I force it through sometimes I get grinding gears idk what the problem is I need some help plz should I flush tranny

[lvbroham1]

I'm thinking one of two things... 1st is the tranny mount causing the clunking sound, 2nd is the hydraulics are giving out on you (maybe switching the hydraulic fluid might fix it) Sounds like the clutch is not being fully engaged. Is this only a problem between 1st - 2nd or between all gears?

[Big D Squared]

Mostly is first gear I hardly ever feel it in second but it very seldom does but could it be the u joints bc it feels like is coming from the rear ?