Viscous LSD B1G Differential - 1G

[GSXlaunch]

Does this mean I should have added some sort of LSD additive last time I changed the fluid in my 90 GSX??? I screwed up and did not add any additive to the rear end. Now the car makes a grinding noise when decelerating... :thumbdown Any help is appreciated.

 

[jesepes]

I'd like to know the same thing. Hopefully someone who knows will offer their help.

 

[Defiant]

The LSDs in DSMs are sealed, viscous couplers. They'll never realize anything's been added. LSD additives are for clutch-type LSDs.

 

[pneumo]

Many high mileage 1G's have some sort of coast down rumble. My car does the same thing. I think it's because the rear diff pinion has too much freeplay, but I don't care enough to fix it yet.

 

[GSXlaunch]

Lately I have been driving the car much harder trying to get it tuned for the track and the grinding sound seems to be much queiter now.

 

[jesepes]

yeah, i looked again at my rear end. My placard says "b1h" not "b1g". What's up with that?? It is limited slip.

 

[GSXlaunch]

mine is a three bolt; yours is 4...otherwise very weird.

 

[GritsnGravy]

B1G is the 90-91 and the B1H is 92 and on. I don't know what year the B1H ended. They are the same. They are both 4 bolts and lsd. The difference is that the half shafts to the hub are 3 bolt on the B1G and 4 bolt on the B1H.

 

[Hesh724]

Not to steal post but i think it still pertains so i bought a rear diff from a 1991 gsx 5spd. and its an A1A he said it is not limited slip but "open" and is 2.848 . could someone lead us to an interchange list? i have look everywhere and no one has anything posted about the diffrences. thanks and sorry for the post pirating.