87 4x4 rear end id

[peglegs]

im replacing the spider gears in my rear end so far this is all the info i have

1987 1/2 ton 4x4 305/350

glove box tag #GT4= 3:73 rr. axle gear ratio

10 bolts

no tag anywhere

i dont believe its positraction ( then i wouldnt need the spiders) & rather not take off the cover as yet, thought i would find that on the glove box sticker

did search here for 10 bolt id, rear end id nothing came up. From the internet is its a 10 bolt corporate

id like to order the spider gears but not totally sure if i have all info thanks

Happy Mothers Day to all the ladies

[walkerscott]

RPO G80 check out your glove box

[peglegs]

Originally Posted by walkerscott

RPO G80 check out your glove box

not there what is that # for?

[walkerscott]

RPO code are the three digit letter number combinations found on your glove box tag

so G80 is for limited slip..

your rearend is 28 spline 8.5" gm 10 bolt. pretty sure it started in 1988 and later versions are 30 spline, trucks and vans vin series ckv versions may not be though

[peglegs]

Originally Posted by walkerscott

RPO code are the three digit letter number combinations found on your glove box tag

so G80 is for limited slip..

your rearend is 28 spline 8.5" gm 10 bolt. pretty sure it started in 1988 and later versions are 30 spline, trucks and vans vin series ckv versions may not be though

ty walker scott, i did deciferd all the rpo #s i guess the reason i would like to be sure its posssible, as in any multiple owner vehicle, it could have been changed ill go on what i have here thank you very much for your time & expertrise