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 Post subject: SBP Rotors / Conversion
PostPosted: Sat Jan 15, 2022 7:52 pm 
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3 Deuce Webber

Joined: Sun Apr 12, 2020 6:13 pm
Posts: 53
Car Model: 67 Valiant, 73 Duster
Thoughts on this Disc Brake Conversion Idea:

Car is a stock 1968 Barracuda with manual drums and a 7.25 SBP- 14 stock wheels
While I have a LBP 7.25 to swap, I would prefer NOT to rip apart the rear--its rust free and perfect.

Came across this...

Brake Rotor
https://www.manciniracing.com/mbmstsmbofrp.html
MDM Brakes.
This is obviously not an OE replacement rotor that can be bought at normal parts store.
This seems to be a 5x4 rotor NOT for the early 2 piston setup.
MBM markets the conversion spindles they sell as exact Mopar replicas---so my thoughts/hope are these would work with OE Mopar spindles. Calls for the same A2/A17 wheel bearings

Upper Control Arm:
https://www.manciniracing.com/ma1alabajo.html
This uses the later style Large Ball joint

Spindle:
Stock Mopar Disc Brake Spindle from a 74 Duster (Large Ball Joint)

I would then use the K781/K783 Standard Large Ball Join---Calipers, Pads, Dust Shields, Caliper Brackets would all be Mopar OE
Master Cylinder is a question as well. Could I use the 73 manual disc/drum unit or thought on a power setup?
Prop valve...? I assume I would need the disc/drum prop valve?

Any thoughts on this?

If that rotor works, it would seem to yield the 73--Later style 5x4 disc setup that Mopar never made.
Keeping in mind that you have a non-stock rotor

Would it be advisable/necessary to switch to the 73-later Tie Rods as well?

Or this this just nonsense—should I swap out the LBP 7.25 that is in my garage and be done...?

Thoughts…?

Thanks


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