jly535

Isn't my differential suppose to be LSD, I turn one wheel and the other goes oposite direction or does it take a load to engage? What ratio should it be? Its a 915 4speed. It has been barely driven in last two years, so I am in the process of detailing underside of car and changing all fluids, rebuilding calipers, checking sparkplugs and replacing a bunch of little items such as oil temp sender, pressure sender, belts etc etc. Considering splitting turbo and replacing oil seal, any special tools neede? I am sure I will have a bunch more questions in the next few months. Thanx in advance, Jamie

JFairman

From your description you do not have an LSD.
If the option code sticker is still on the bottom side of the hood and you see number 220 on the list it origonally had a limited slip differential and someone changed it for a regular open one.

I've never taken the turbocharger apart.

DDD

My 1976 never came with limited slip, so there is no reason to believe that yours did either. It was an option.

LeonardZ

915...?

More likely a 930 4 speed w/ no lSD.

How about a pic?

pete77930

Mine came with 3 options,
Limited Slip Diff - $370.00
Sport Seats Left and Right - $255.00
Electric Sliding Sunroof - $710.00
with a total retail price of $29,924.00 back in 77.

now post some pics of your "new" 77.

PorschePhD

Yep, LSD was always an option. Still is. I had to order it with mine.

jly535

Internals, torque biasing diff. I quess it only engages under load, is why when I turn my rear tire the other goes opposite way. Can anyone else confirm this is a character of Quaife diff.? Thanx, Jamie

onboost

Don't think the the option code sticker under the hood appeared until 87 for US cars. 77 through 79 US 930s didn't have this.

P-