Rear end id help for 84 gmc g2500

[bigroneshouse]

I cant seem to find out what rear i have in my van,i find id on passenger side on tube,it says bbrg 192-1,also g64 on driver side and 14055251 of pumpkin,i called gm and they couldnt tell me anything,they said there software doesnt go back that far,i think its a 342 rear,any help would be appreciated....

[monzaz]

Geez, Never really had to look up Vans or trucks...LOL.

So bbrg 192-1 is STAMPED in the passenger side axle tube? Yes? Jim

If it is 10 bolt most were 3.42.

If it is a 9.5 or 10.5 full floater it will be 3.73 or 4.10

[bigroneshouse]

Thanks for the help.