diff. problem

[Rigo91]

ok so yesterday i bought my first 240sx (1990) the guy who sold it to me said that the only problem was the differential, he also told me that a mechanic came n look at it and found broken peices in the diff. when i drove it home n as soon i hit about 25-35mph i hear a really loud grinding noise coming from the back, but when i release my foot off the gas pedal it stops n when i give it gas it starts again n so on.. my question is idk what kind or type of differential i have so i can replace it.. can anyone tell me how i can find out? (heres a pic of it)http://i639.photobucket.com/albums/uu113/OG1R/P__6AE9.jpg

[roboticnissan]

Looks like a stock diff to me. A member is selling one for 25 dollars right now in the for sale section.

[soreballz]

Drop the diff, pop the cover off, and take a look. It should be pretty easy to figure out after that.

[Rigo91]

alright, appreciate it thanks =)

[smoked240]

Was it a grinding noise or a humming noise? But yeah, the only way to tell is to drop the diff and pull the cover. It's probably either broken teeth,bad bearings or no fluid.

[zombiewolf513]

http://i258.photobucket.com/albums/hh255/coolchris98/absvsnonabs.jpg

ABS vs. Non-ABS is something to keep in mind if you buy the whole shibang. The driveshaft lengths are different.

[Rigo91]

it was a really loud grinding, it will only happen when i would step on the gas n reach about 25-35mph