MSD 8472 User Manual
ADDENDUM
MSD BRONZE GEAR INFORMATION
MSD’s Bronze Chevrolet distributor gears are machined to be used on a 0.500” distributor shaft. (All MSD Chevrolet Distributors have
0.500” shaft.) These gears are machined from Ampco 45 alloy which is an aluminum bronze material with 5% nickel added. This
produces a gear with excellent impact and wear resistance while eliminating damage to billet camshafts.
MSD offers several bronze gears ranging from a standard gear to a 0.015” oversized gear. The oversized gears will have the size
stamped in the lower part of the gear such as “.006 OS.
Standard ......... PN 8471
+0.003 ........... PN 84721
+0.006 ........... PN 8472
IMPORTANT
Enclosed in this kit is a tube of camshaft and lifter lubricant that must be used during the installation of this distributor gear. Apply a
liberal amount of lubricant to the gear before installing the distributor in the engine.
M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
© 2011 Autotronic Cont rols Corporation
FRM28457 Revised 12/11 Printed in U.S.A.
+0.009 ........... PN 84722
+0.012 ........... PN 84723
+0.015 ........... PN 84724
ADDENDUM
MSD BRONZE GEAR INFORMATION
MSD’s Bronze Chevrolet distributor gears are machined to be used on a 0.500” distributor shaft. (All MSD Chevrolet Distributors have
0.500” shaft.) These gears are machined from Ampco 45 alloy which is an aluminum bronze material with 5% nickel added. This
produces a gear with excellent impact and wear resistance while eliminating damage to billet camshafts.
MSD offers several bronze gears ranging from a standard gear to a 0.015” oversized gear. The oversized gears will have the size
stamped in the lower part of the gear such as “.006 OS.
Standard ......... PN 8471
+0.003 ........... PN 84721
+0.006 ........... PN 8472
IMPORTANT
Enclosed in this kit is a tube of camshaft and lifter lubricant that must be used during the installation of this distributor gear. Apply a
liberal amount of lubricant to the gear before installing the distributor in the engine.
M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
© 2011 Autotronic Cont rols Corporation
FRM28457 Revised 12/11 Printed in U.S.A.
+0.009 ........... PN 84722
+0.012 ........... PN 84723
+0.015 ........... PN 84724
ADDENDUM
MSD BRONZE GEAR INFORMATION
MSD’s Bronze Chevrolet distributor gears are machined to be used on a 0.500” distributor shaft. (All MSD Chevrolet Distributors have
0.500” shaft.) These gears are machined from Ampco 45 alloy which is an aluminum bronze material with 5% nickel added. This
produces a gear with excellent impact and wear resistance while eliminating damage to billet camshafts.
MSD offers several bronze gears ranging from a standard gear to a 0.015” oversized gear. The oversized gears will have the size
stamped in the lower part of the gear such as “.006 OS.
Standard ......... PN 8471
+0.003 ........... PN 84721
+0.006 ........... PN 8472
IMPORTANT
Enclosed in this kit is a tube of camshaft and lifter lubricant that must be used during the installation of this distributor gear. Apply a
liberal amount of lubricant to the gear before installing the distributor in the engine.
M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
© 2011 Autotronic Cont rols Corporation
FRM28457 Revised 12/11 Printed in U.S.A.
+0.009 ........... PN 84722
+0.012 ........... PN 84723
+0.015 ........... PN 84724
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