Numerical Listings and Interchanges  
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will help you locate part numbers on any given page.
Raybestos to Wilwood:
Raybestos
Pad Number
Wilwood
Pad Type
D8
D31
D44
D52
D154
D412
D413
D431
D491
D592
D594
D608
D609
D627
D639
D702
D711
D731
D732
D879
R20-12
R200-20
R301-12
R301-16
R302-12
R303-16
R400-14
R401-10
R500-25
R500-28
R501-28
R561-28
R561-30
R578-30
R600-30
R700-20
R701-16
R701-20
R735-16
R735-20
R735-22
R736-20
R767-17
R767-21
R770-20
R770-25
R770-28
R771-25
R780-18
R801-18
R801-20
R802-20
R803-20
R804-16
R2000-16
R2000-20
R2600-18
R2600-20
R2600-25
R2600-28

Notes:
(1) Replaces PFC 7790 and Hawk HB109, but with a slightly larger inside radius
(2) 8 pads per axle set
(3) Pad type 7620 may be substituted for pad type 8320 for use in Brembo Caliper
(4) Also replaces PFC pad type 7772 without cotter pin tab