there are 3. The cap, a black ring with holes in it for the screws, and then the inner FPR assemble with the orange gasket and spring/diaphragm. I just tried installing mine, I put the ring under the cap, then the spring/diaphragm inside, and screwed it down. Fuel leaked EVERYWHERE. This definately isn't how it's supposed to go. Does the ring go in last, after the spring/diaphragm? Or does it go on top of the cap, on the outside? thank you

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91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter
ported TPI setup

Built on Wednesday

 

The gasket/diaphragm assembles against the base, then the stamped spring can/cap, then the round reinforcement ring. The ring distributed the screw pressure across the entire spring can to minimize distortion and leakage.

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Later,
Vader
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"Let the bodies hit the floor!"
Adobe Acrobat Reader

 

On some aftermarket AFPR like the one I have, the AFPR is too big to reinstall the load spreading reinforcement piece.

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1985 Z-28, 350 TPI, T-Tops, edelbrock 6085 heads, ZZ4 cam, accel base/runners & 24 lb/hr inj., ported plenum, everything gasket matched, crane AFPR, SLP 1 5/8 headers, single 3" flowmaster catback, 3" Catco cat, modified tranny, 165 ECM & ARAP code, MSD 6AL/wires, edelbrock STB, Spohn SFC, GW "wonderbar"