what is the meaning of GU4

[defa]

i have read on here before that gu4 mean live axle. now i have also read that live axle is your normal everyday solid diff. is that right..
a friend of mine has a vr calais with IRS and on the comliance plate it says gu4. i have a stateman out the back. and it has gu4 and i have an 89 vn s pack and it said gu4.. and i am pretty sure my vn exec would have gu4 on it too.. what my question is. my mate reckon gu4 means single spinner.. does anyone know for sure what it means or not..
greenfoam. what does your vp have on the compliance plate that is a irs lsd isn't it???

 

[greenfoam]

Yep GU4 means standard 3.08 single spinner diff, mine has GU4 it's not LSD, but sometimes spins both I think IRS cars are more likely to do that

 

[defa]

right. so it is right then.. so when people say live axle does that mean single spinner or a normal solid diff (non IRS).. i just got thinking about it and it was either on this forum or another one. people were saying gu4 meant non IRS.. and i thought that wasn't right...
so

 

[defa]

what does it say on teh plate if it is an lsd diff

 

[5Litre]

I think it's supposed to say G80 for an LSD but my ute says GU4 but is definately LSD.

 

[defa]

my girlfriends mum's vn has gu4 stamped on it, but i think it is lsd

 

[xcop5l]

i will have a look at mine and see, idefanatly know its lsd

 

[mattman]

GU4 for single spinner, G80 for LSD.

All they are, is the manufacturer model number (ie - Eaton G80 LSD).

 

[burnz]

GU4 for single spinner, G80 for LSD.

All they are, is the manufacturer model number (ie - Eaton G80 LSD).

matt is right on the series
spicer not eaton
proly thinking of gearbox matt

 

[mattman]

http://www.traction.eaton.com/prod2.htm

Maybe It's just the biggest coincidence ever, but there's an Eaton G80 LSD going on GM cars..

Or maybe Eaton bought Spicer, Eaton do like to buy people...

Edit - scrap me... thats a G80 locker... blah