not too hard , pretty much swap mounts over and bolt in, run all vl anciallaries. get a 33 box as well, will neeed vlt manual tail shaft of get a shaft made through hardy spicer or driveline sevices, get a cable type speedo drive to run the old vl, as mentoned previously a mod plate too. would probably suggest front brake upgrade and vlt diff too, run disc rear, which in turn will need double diapram booster and 1 inch master.. not meaning to be rude as i am an ex vl person i would consider ditching the vl all together and just getting a 33 or 34. chalk and cheese really.... i made the change 5 years ago and havent looked back.