my 04 sti's half shaft came loose today but i popped it in and it seems fine. anyone else have that problem?

 

arent those models suppose to have a dowl pin for retainment?

 

yea, spring pins. i was just going to ask whether or not they were still there (tranny side) or damaged. other than that id say either interal tranny issues (shot bearing?) or worn/ broken suspension component.

i am by no means no tranny or suspension expert. as im sure u know, dont be rippin ur **** apart cuz i or someone told u it was X cause of problem. just puttin it out there. i recently got bitten in the *** at work for not "covering my ***" lol.

back to OP. those are the only two things i can think of. also, it came loose....just loose and rattling around or straight dropped to the ground? in which case, ur springs pins are missing or u somehow snapped the tranny spindle.

goodluck with fix

 

also, come to think of it, have you checked your CV boots for tears? my half shafts rattle all the time due to torn boots and running dry in the joint (no good)

 

soo after i just pushed it back in it kind of click in
and i havent had any problems with it
i didnt see where the pins were suppose to go

 

Yeah those pins are not visible till its further out but I'm just trying to figure what backed it out a hair?

 

tranny ghost? lol

 

Did u lanch the car or WOT pull in first. I have seen on wrx's the rear axle pop out. On an STi that was modded came out just alittle were some gear oil came out of the rear diff.

 

no i just was changing the tranny oil, and out pops the shaft

 

the spring pins slide in on the tranny end green piece that covers the splines on the half shaft. if u were to take out the half shaft ud see that there is a tiny hole going throug the splined tranny axle. maybe new ones werent used if serviced?

 

Yeah, there should be a pin holding the shaft onto the stub that comes off the transmission. Here are some pictures from the FSM for an 02 wrx 5-speed, I believe the front axles are same on this car and yours. I'm not 100% on it being the same part, but the pin we are talking about should be in almost the same spot either way.

In this picture you can see the spot where the pin goes (vertical channel) through the far right end of the axle.


In this exploded view the spring pin in question is component #2 near the top left side.


This last image shows the install/removal method for said pin.

 

not quite on the green piece. but with Goncherovs post it should be pretty clear now what you are looking for