Hi were can i locate the propshaft couplings on my 1992 toyota estima 2.2 turbo diesel 4wd auto or were can i find a diagram they need to be changed asap. thankyou

beecastle would be better to ask this as a separate question,rather than a comment,as it has been missed.oil leaks from the oil filter or the oil pump seal are common for this model if a diesel.it does as you noted.the filter is easy to fix,tighten or replace.the latter is more difficult,the front covers have to come off engine,cambelt etc.replace all seals while in there and also waterpump and cambelt.It is better to leave this job to a mechanic if not confident.Look under the engine though and see if oil leak can be seen at the bottom of the plastic belt covers at the front of the engine for this problem. beecastle would be better to ask this as a separate question,rather than a comment,as it has been missed.oil leaks from the oil filter or the oil pump seal are common for this model if a diesel.it does as you noted.the filter is easy to fix,tighten or replace.the latter is more difficult,the front covers have to come off engine,cambelt etc.replace all seals while in there and also waterpump and cambelt.It is better to leave this job to a mechanic if not confident.Look under the engine though and see if oil leak can be seen at the bottom of the plastic belt covers at the front of the engine for this problem.