diff/cv joint extreme clunking and grinding

[Guest]

on the way to hamilton last night, came of a give way, changed to 2nd, changed to 3rd......................clunk, grind, click click, clunk, clunk.

Left it out the side of the road, walked home.

Went back this morning, tried towing it, just got pulled onto the road and it made that clunking noise again, feels like its coming from the front left. Went a borrowed a big trailer, chucked the legacy on, put it in the garage. up on axle stands started the car, put in 1st, let clutch out and made the same noise.

Has anyone got a clue what has gone wrong.

Any help will me much appreciated.

Cheers

[Guest boostcut]

without seeing it, it sounds like you have an rs or gt? which if it did have a broken cv joint would cause it to have verry little drive..

[Guest]

hmm ok, well it drives, so else maybe? it is a BG5 legacy, converted to single turbo etc etc.

[Guest boostcut]

can you select all gears?

[Guest]

yes i can

[Guest boostcut]

and it still drives? id say you have smashed a cv. did you notice any clicking before hand??? or even a torn boot would be a give away...

[Guest]

oh ok, umm no not from the front anyway. thanks

[dubbedup]

 CUDDAS said:

Front diff- crownwheel & pinion???

i was thinking something along the same line...takes a fair bit before you have to stop driving with a fubar'd CV

[driftrex]

check if cv boots are split, failing that are you in hamz still? i could take a quick look and diagnose for you.

[Guest]

thanks for all your help guys

front diff pinion failure.

gonna rip out the gearbox and chuck a second hand one in.

Pain in the ass.

first time gearbox removal so should be fun. There is some helpful info on here so should be sweet.

Thanks again for your help

[Guest]

ok so everything is undone. apart from the shifter linkages. where abouts and how do i disconnect those??

[Koom]

Possibly too late now but you undo it under the car. Need a 12mm spanner. Undo the nut that holds on the big round bush, remove that which will also take the little spring with it. Then undo the bolt that goes through the uni joint on the gearchange mechanism. Gear lever should then be disconnected from the box.

[Guest]

thanks, yea i manged to figure it out. gearbox is out on the floor. so what is a recommend gearbox to install?

cheers

[funkytown]

there should be a gearbox code on the side of the bell housing of the one your removed. Post that up for us to look at.

have a look here---> http://spda-online.ca/modules/tinycontent/rewrite/tc_28.html

also check the tag on the strut tower to check the gb number matchs what you got on the gb itself.

and a fail safe... count the rear diff crown wheel teeth.

basically you just need to find a box with the same rear/front diff ratios - the above will help us help you find what they are. It will 95% be either a 4.444 or 4.111 final.

[Guest]

the code is 85-TY752VBAAA.

[funkytown]

and your car is a

JDM Legacy RS & GT (turbo) MY94-95...?

that box is listed as having a 4.111 final - thus what your rear should be now. Although.. if you've smashed the front diff pinion you might be running a different ratio.... def worth checking your rear diff. Count the teeth through the bung and report back. (youl have to drain the oil).

[Stoffa]

you dont need to drain the oil to check, its a mechanical ratio so just mark cv and count how many times the drive shaft spins compared to the cv.

Its not exact but you can easily tell the difference between 4.1 and 4.4