Page 601 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

GM 8.5" GM 12-Bolt Chevy 8.875"
• Oval Cover • Oval Cover 10-7/8", 12 Holes
• 11", 10 Holes, Or Irregular Cover 10-5/8", 10 Holes • 12-Bolt Carrier
• 8.50" Diameter Ring Gear • 8.875" Diameter Ring Gear
• 1.626" Diameter Pinion, 30-Spline • 1.625" Diameter Pinion, 30-Spline
• 1970-98 GM Cars And Trucks • 1965-72 GM Passenger Cars
• Installation Kit: RIC83-1021-1 (Rear Only) • Installation Kit: RIC83-1019-1
Part No. Ratio Teeth Part No. Ratio Teeth Part No. Ratio Teeth
Street Gear Street Gear Pro Gear
RIC49-0041-1 3.73 41-11 RIC69-0304-1† 4.10 41-10 RIC79-0099-1 4.11 37-9
RIC49-0034-1 3.90 39-10 RIC69-0031-1 4.10 41-10 RIC79-0074-1 4.33 39-9
RIC69-0165-1 4.10 41-10 RIC69-0378-1 4.33 39-9 RIC79-0072-1 4.56 41-9
RIC69-0167-1 4.56 41-9 RIC69-0306-1† 4.56 41-9 RIC79-0064-1 4.88 39-8
RIC69-0169-1 4.88 39-8 RIC69-0032-1 4.56 41-9 RIC79-0027-1 5.14 36-7
RIC69-0171-1 5.13 41-8 RIC69-0033-1 4.88 39-8 RIC79-0029-1 5.38 43-8
RIC69-0173-1* 5.38 43-8 RIC69-0034-1 5.14 36-7 RIC79-0031-1 5.57 39-7
* Needs special cross pin RIC80-0272-1 RIC69-0035-1 5.38 43-8 RIC79-0033-1 5.86 41-7
INSTALLATION NOTES FOR GM-8.5": When replacing stock 2.56 and nu mer i cal ly lower, the † Fits 3.08-3.73 ratio carrier.
carrier must be re placed with a carrier of 2.73 or higher. INSTALLATION NOTES FOR GM-12 BOLT: When replacing a 2.73-3.90 ratio with a Rich-
mond Hi-Perf. ring and pinion, the carrier must be replaced with a carrier from a stock 4.10,
4.56, or 4.88 ratio. When in stall ing 5.14 to 6.14 ring and pinion sets, differential cross shaft
RIC80-0269-1 must be used.

EXCel Ring And Pinion Sets Installation Kits
EXCel ring and pinion sets offer exceptional Everything to install a ring and pinion.
value and OEM-like quality. Gear design, Part No. Description
tooling, steel selection, heat treat, and qual- RIC83-1011-1 Ford 9", 2.891" Carrier Bearings
ity are controlled exclusively by Richmond RIC83-1013-1 Ford 9", 3.062" Carrier Bearings
RIC83-1015-1
Ford 8"
Gear. Ring and pinion sets are ideal for street or mild drag race applications. RIC83-1019-1 GM 8.875" 12-Bolt, Passenger
Part No. Ratio Teeth RIC83-1021-1 GM 8.5" 10-Bolt
Ford 8.8" Part No. Ratio Teeth RIC83-1031-1 Chrysler 8.75" (Late)
RICF88373 3.73 41-11 GM 10-Bolt 7.5"/7.625" RIC83-1034-1 Dana 60
RICF88410 4.10 41-10 RICGM75373OE* 3.73 41-11 RIC83-1037-1 Chrysler 8.75" (Early)
Ford 9" RICGM75410OE* 4.10 41-10 RIC83-1043-1 Ford 8.8"
RICF9389 3.89 35-9 RICGM75410TK @ 4.10 41-10 RIC83-1044-1 GM 7.5" 10-Bolt, 1982-98
RICF9411 4.11 37-9 GM 10-Bolt 8.5" RIC83-1077-1 2010-Up Chevrolet Camaro V8
RICF9433 4.33 39-9 RICGM85373 3.73 41-11
RICF9456 4.56 41-9 RICGM85410 4.10 41-10 Gear Marking Compound
RICF9471 4.71 33-7 RICGM85456 4.56 41-9 RIC55-0001-1
RICF9486 4.86 34-7 GM 12-Bolt 8.875"
RICF9514 5.14 36-7 RIC12BC373 # 3.73 41-11 When applied to rear end gears, marking compound helps in setting proper
RICF9543 5.43 38-7 RIC12BC373T* 3.73 41-11 gear contact pattern.
RICF9567 5.67 34-6 RIC12BC410 # 4.10 41-10
RICF9583 5.83 35-6 RIC12BC410T* 4.10 41-10
RICF9600 6.00 30-5 # Use with 4-Series carrier.
RICF9620 6.20 31-5 * Use with 3-Series carrier.
RICF9633 6.33 38-6 @ Use with 2-Series carrier.
RICF9650 6.50 39-6 See the Allstar section,
Note: Please see previous diagrams for differential identification. page 69 for ring and pinion
installation kits.
Gear Oil NEW!
Engineered to deliver maximum protection under the
most demanding conditions, synthetic gear oils are
offered in GL-4 or GL-5 formulas. GL-4 is suitable for use
in transaxles and transmissions where specified, while
GL-5 is designed for use in high-performance racing
differentials and posi-traction units. Sold in one-quart
bottles.
Part No. Description
RICRICHGL4 GL-4 Multi-Purpose Petroleum Gear Oil
RICRICHGL5 GL-5 High Performance Gear Oil
Photo by: JohnnyB Imagery Phil Wrobleski
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