what year did the 8 3/4 start being used in a bodies??????

Officially, 1966.

Some 1965s made it through with 8¾" rears.

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

My '65 Barracuda had an 8-3/4....it was behind a 273 commando. I blew it up and replaced it with an 8-3/4 robbed from a Valiant Wagon. This was many years ago when 8-3/4 rears were common in junk yards....

_________________
Rob

'62 Plymouth Savoy Wagon
'64 Chrysler 300
'47 Farmall H
Merlins are cool
Radials rule
Jets drool

strange how they(chrysler) kept putting the 7 1/4 sg behind v-8's. especially 273 commandos and 4 spds through 1969.

7 1/4 suregrips are pretty tough little rears. Charlie as been using one in his drag car for quiet a while.

_________________
82 D150-225/727
02 Dakota-3.9/5 speed
87 GMC C7000-8.2 Detroit Diesel/5+2

I've pulled from 2 65 Dart V8 4 speed cars 8 & 3/4's. Don't remember the build date on one of them but the other was a 7/23 build date. I would suspect late build 65s with V8 4 speeds were most likely to get them (salesman talking customer into heavy duty rear?).