ploblem with my range rover

hello every one i am new to the forum i am looking for some advice on my range rover i bought a c reg one 3.5 manual one as a non runner. i was told that the gear box is not all that, it was makeing loads of noise from it, so i changed it and the trans verce box as well and the clutch and the slave cyinder as well i am still getting the same noise . crunching thew the gears there is a noise which sands very loud from the gear box, i am now going to change the master cyinder. im thinking if the presure is not strong enough to push and hold the clutch to engage it to go threw the gears smoothly

hello mate not quite sure what your trying to describe but i think you are saying the clutch is not disengaging properly and there for making it difficult to engage , is the pressure on the clutch pedal there instantly or do you have to pump it up ??