need tourqe specs on the U brackets on the rear differential and the tourqe specs on then little bolt that holds the main pin in the diff

 

Fullsize or s-series? Well.. I'm not sure if it matters. I believe the torque spec on the bearing cap bolts should be 55-60ftlbs. The spider cross pin should be around 20ftlbs or just good-n-tight..

 

Full size v8 305 i wana say ten bolt rear diff

Full size

also wat type of gear fluid should i use like wat weight

 

You can use pretty much whatever gear lube you want in the rear. 80w90 or 80w140 are both acceptable depending on your climate (heavier for hotter climates). You may experience lower mileage using 80w140 in cooler climates though.