944 aluminum rear trailing arm info

[zen]

since i ended up with both early and late ali arms, i thought i would share a pic showing track width differences. i did no measuring and these shots are hardly scientific, but the difference in width comes from the hub. there should be no difference in the length of axles required. spring plate mount is obviously in the same place as well.

here's what they look like (early on top, late on bottom)...


those come from a 924S/86 951 for the early and a 944S/late 951 for the late arm. also, here is a 86 951 rotor on the late arm. goes to show the difference (not i get to order rotors again)...

[jhelgesen]

Hey Zen, I can take those rotors off your hands, I'll need a pair for the vert.

[zen]

i'll probably just hold onto them and use them on my 951. it is not too far off from a brake job. haven't measured the rotors on it though. i got these from Vertex for $65 each though. shipping is what kills the deal.

[jhelgesen]

Originally Posted by zen

i'll probably just hold onto them and use them on my 951. it is not too far off from a brake job. haven't measured the rotors on it though. i got these from Vertex for $65 each though. shipping is what kills the deal.

Oh yeah, forgot you had that water pumper. No prob.

[Tim]

Hello Zen,

As you've got both early and late alu arms side by side, does it look ok that the hub of the early alu arm can be used on the late alu arm?

Thanks
Tim

[zen]

Originally Posted by Tim

Hello Zen,

As you've got both early and late alu arms side by side, does it look ok that the hub of the early alu arm can be used on the late alu arm?

Thanks
Tim

i've never had them apart so can't speak for bearing, stub and hub interchangeability. some others here might be able to. attached is a better pic of the hub comparison. not much of a help, but better than nothing.

[Tim]

Thanks Zen. The lock nuts look the same but not sure if the number of splines and the diameter of the stubs are the same.

Regards
Tim

[Bugnutz]

Zen,

Thanks a lot for sending the photos. I am working on exactly the same problem- I don't have enough fender clearance, and will need to change from the late "dished" hubs and wider hat section rotors to early flat hubs and the rotors like your new ones. The photos will help out a lot when I go for the parts.

Regards, Mark.