Richmond 4:88 Gears - new in the box
 

One set of Richmond Gears - part number 69-0033-1
GM 8.875" 12 BOLT CAR 4.88 4-SERIES RING & PINION SET FITS 4.10 & UP CARRIER WITH C-CLIP AXLES - Richmond Street Gears

Applications:
65-72 Chevrolet
65-72 Chevelle
65-72 Chevy II
67-72 Camaro
70-72 Firebird
70-72 GTO
70-72 Nova
68-69 Olds F-85
65-72 El Camino

Specs:
10 7/8" Oval Cover
1.625" Diameter Pinion
30 Pinion Splines

They sell on the bay for $154 - 163.

$110.00 plus shipping - these are brand new, never installed.

Thanks SYC for the ad!