fited a ef diff to my el last night after around 10k's there is a huge vibration put the clutch in its still there but not as bad when its under load or backing off, any ideas?? its has a 5 speed manual

hi
you will need to check the diff pinion angle as ef and el use different length upper diff arms.
what upper arms did you use??

ok thought sumthing like that would be the problem... didnt check that before i pulled it out. when i looked at it i thought it was right but wasnt sure...so if i use the ef upper arms that should be sweet??