1988 D100 Rear End Swap

Hello,
Have a question on Dodge Warlocks, the 2WD variety.
I’m looking at a rear end out of a 1976 Warlock for my 1988D100.
The truck has a 360 & 727 Combo.
Would the rear end in this truck have a Sure-Grip Diff?
The seller is listing it with a 3:55 gear?
Any info would be helpful.
Thanks
Author: Air Bubba