Square Bore Yokes
| Stock No. | Series No. | A | B | C | F | Wt. Lbs. |
| 183-0612 | 6N | 3/4 | 2-1/2 | 2-1/8 | 1-7/64 | 1.34 |
| 183-0614 | 6N | 7/8 | 2-1/2 | 2-1/8 | 1-7/64 | 1.27 |
| 183-0616 | 6N | 1 | 2-1/2 | 2-1/8 | 1-7/64 | 1.20 |
| 183-0618 | 6N | 1-1/8 | 2-1/2 | 2-1/8 | 1-7/64 | 1.11 |
| 183-0620 | 6N | 1-1/4 | 2-1/2 | 2-1/8 | 1-7/64 | 1.02 |
| 183-1214 | 12N | 7/8 | 3-1/2 | 2-1/8 | 1-29/32 | 2.18 |
| 183-1216 | 12N | 1 | 3-1/2 | 2-1/8 | 1-29/32 | 2.13 |
| 183-1218 | 12N | 1-1/8 | 3-1/2 | 2-1/8 | 1-29/32 | 1.90 |
| 183-1220 | 12N | 1-1/4 | 3-1/2 | 2-1/8 | 1-29/32 | 1.70 |
| 183-1414 | 14N | 7/8 | 3-1/2 | 2-1/4 | 1-41/64 | 2.55 |
| 183-1418 | 14N | 1-1/8 | 3-1/2 | 2-1/4 | 1-41/64 | 2.30 |
| 183-3516 | 35N | 1 | 4-5/32 | 2-5/16 | 2-9/64 | 3.48 |
| 183-3518 | 35N | 1-1/8 | 4-5/32 | 2-5/16 | 2-9/64 | 3.32 |
| 183-3519 | 35N | 1-3/16 | 4-5/32 | 2-5/16 | 2-9/64 | 3.10 |
| 183-3520 | 35N | 1-1/4 | 4-5/32 | 2-1/2 | 2-9/64 | 3.45 |
| 183-3524 | 35N | 1-1/2 | 4-5/32 | 2-1/2 | 2-9/64 | 3.04 |
Furnished with Set Screw.
Manufactured in the USA by G&G Manufacturing Company.