10 Bolt 8.8 rear ?

[HOTSIX]

10 Bolt 8.5 rear ?

Which rear do we have on these hotairs...?

I wanna replace mine with a posi unit and found one for sale - it says its a 10 bolt GM truck rear 3.42 posi unit.

Will it fit ? What should I take...the whole thing (axles n all) ? Or do I just need the pot with the gears and posi unit ?

 

[REDS HOT AIR]

hot airs are 8.5 rears with3:42 gears so all you need is the posi unit itself depending on what year it is to wheather it has 28 or 30 axle splines you need older than 88 so it will have 28 splines