Ok, ordered rotors on ebay for my 83 300sd. Seemed like a good deal.
Correct me if im wrong... but these rotors should be threaded for the bolt to hold on the wheel... Right?
Dont yell at me for not going OEM

It's the hub that has the threads, not the rotor. The rotor is sandwiched between the hub and wheel.

close, but no cigar.
it is the hub that has the threads, but the rotor is bolted to the hub from the back.
to install an SD or D rotor, you need to remove the EXTREMELY TIGHT bolts from the back of the hub, and remove the rotor, then install the new rotor.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Depends on whether the rotors are at the front or the rear.

so none of the holes in the rotor should be threaded? it has a total of 10 holes 5 larger then the other ones. These would be the front

right, the holes line up to the threaded holes in the hub.
they bolt the rotor to the hub.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

And the bigger non threaded holes let the wheel lugs pass throught to bolt on to the hub also.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

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