81' Malibu Factory v8

[83GWAGON]

Does anyone know what gears came in the 81 Malibu with the V8 from the factory? And is it a posi?

Also what is the width from hub to hub on a stock 10 bolt 7.5 ?

 

[Ribbedroof]

Depends on the engine, body style, and emissions system

Width is around 58.5 inches. Limited slip was available (though seldom ordered) in all configurations.

 

[83GWAGON]

Depends on the engine, body style, and emissions system

Width is around 58.5 inches

OK.. Thank you. SO I'm guessing it's different from a 305 to 350?

 

[83GWAGON]

I see now they only came with the 267.

 

[Ribbedroof]

No 350s in 1981 in Maibu, 267 or 305 only for V8s

 

[Ribbedroof]

49 state Emissions:

Coupe/sedan with a 267 got 2.29, wagon with 267 got 2.56

Wagon with 305 got 2.41 with 2.73 "performance ratio" optional

California emissions:

Coupe/sedan with 305 got 2.29, with 2.73 "performance ratio" optional

Wagon with 305 got 2.41 with 2.73 "performance ratio" optional

No 267 in California, as I recall, it wouldn't pass emissions

 

[Dayzedandkonfuzed]

2.29 in my 80 malibu 305. Pretty sure most of our cars got 2.29's even though most people i tell don't believe they made a gear so high.

 

[83GWAGON]

Thanks fellas.. Sure don't want those dog gears. I might end up just saving up for a 9" complete assembly bolt on rear end.

 

[83GWAGON]

No 350s in 1981 in Maibu, 267 or 305 only for V8s

I found a guy close that has an 87 Monte SS rear end. Has 3.73 gears. For 350 bucks. Is that reasonable and did the SS Monte's come with that gear ratio?

 

[Ribbedroof]

MCSS got 3.42 for 83/84 and 3.73 for 85+

It's still a 7.5 (7.625 actually) rear, probably less than a new ring and pinion plus setup, but it's still a 30+ year old used part. It is less than the few that have been advertised locally