Friday, March 29, 2019

200 mph Landspeed Ring and Pinion Salt Flat Racing


200 mph Gears
Ring and Pinion


Richmond Gear 2.13  32-15 tooth
Custom made 13 sets for 12 bolt

32÷15= 2.1333333333

RICHMOND Custom Stamp side of gear



Story read in a performance magazine like HotRod, out of the 13 sets 3 went to the person who special ordered, and the other 10 were spread to the salt flat racing community. I managed to buy 1
Legend is that John Lingenfelter is the man who contacted Richmond Gear in the early 90s, to custom make the special 2.13 Ring and Pinion for 12 bolt car.





15 Tooth pinion - 32 Tooth Ring




32 Tooth Ring Gear thickest teeth





Michael LeFevers verified it was 25 sets of Custom Richmond 2.13 gears made.
 The 300mph 92 Trans Am owner, who broke the 300mph barrier
using a set of the custom Richmond 2.13 gear for 12 bolt car.

Kugel and LeFevers Firebird







This custom Richmond 2.13 set pictured, was owned by
Al Teague, owner of Betsy the Spirit of 76 streamliner 400mph record holder

AL Teague's Betsy Spirit of 76


Very Rare never seen 12 Bolt 2.29
GM 2.29  12 Bolt Ring and Pinion 
17-39 tooth






GM 12 Bolt 2.29 
17-39 Ring and Pinion


82 up Firebird or Camaro 7.5 inch
GM 2.14 Ring and Pinion 7.5 inch
22-47 tooth


GM 47-22 tooth Ring and Pinion
47÷22=2.14 (2.1363636364)
 10 Bolt GM
used in cars like 82up Firebird, Camaro

GM 2.28 Ring and Pinion 7.5inch
18-41 tooth



GM 41-18 tooth Ring and Pinion
41÷18= 2.28 (2.2777777778)


GM 2.29 Ring and Pinion 7.5inch
21-48 tooth


GM 48-21 tooth Ring and Pinion
48÷21= 2.29 (2.2857142857)
notice the two GM 2.29 2.28 difference



Ford 2.47 Ring and Pinion 9 inch





 These are rare gears that can push to 200+ mph on highway type landspeed top speeds.
Ring and pinion gear ratio, meaning lets say if you have a 3.00 to 1 gear. Means the Pinion will spin 3. times to 1 wheel rotation.
The size of rear Tires also effect the ratio too, but not going there to make it simple for those learning how it goes.
  Other GM General Motors Ring and Pinion sets that can reach 200mph
GM 2.41  10Bolt 8.5 inch ring     
GM 2.56  12Bolt 8.875 ring gear
   GM 2.29  12Bolt 8.875 ring gear   
     GM 2.29  10Bolt 7.5 inch ring gear
2.73  41-15 tooth
2.56  41-16 tooth
2.41  41-17 tooth
2.29  39-17 tooth
2.28  41-18 tooth
2.29  48-21 tooth
2.14  47-22 tooth

main factor is the gear ratio not which mfg GM, Ford, Mopar, etc

If you want good gas milage and top highway type speeds with the right engine power and overdrive can reach top speeds of 150mph up
Ring and Pinion ratios of
2.73 - 3.08
2 series Carrier needed to install 2 series Ring and Pinion


Drivetrain rear wheel drive



From the Engine flywheel, to the Transmission, to the Driveshaft, to the Differential Rear Gears that drive wheel axles.

Ring and Pinion in Posi Carrier 12Bolt



Posi Carrier unit, has spring set. How to tell if you have a Positraction unit? Jack the rear off the ground(Chuck block the front wheels first safety) then turn a wheel. If both wheels turn same direction, its in there.
 Dont take a chance breaking something doing a burnout to see if you got 1 or 2 tire marks



The custom Richmond 2.13 Ring and Pinion