Spohn Performance B5970-980 Features:

Don't use your old rusty mounting bolts when installing a rear upper control arm on your 1959-1970 Chevrolet B-Body Impala, Caprice, Biscayne, Bel Air, etc. (if you managed to get the nuts off without breaking the bolts!).

This hardware kit is up to the task of handling the severe abuse that these large and heavy cars will throw at them, only the best Grade 8 and Grade 9 components go into our mounting hardware kit.

Our rear upper control arm mounting hardware kit includes:

(2) 5/8 in. Grade 8 bolts (zinc plated)

(2) 5/8 in. Grade 9 steel lock nuts (zinc plated)

(4) 5/8 in. Grade 8 flat washers (zinc plated)

Fitment Note: Sold per arm. If your car is equipped with two rear upper control arms then you will need to order quantity two of this hardware kit. You will need to verify whether your car has one or two rear upper control arms. All six cylinder and most small block cars were equipped with one rear upper control arm. Big block cars were equipped with two rear upper control arms.

• (2) 5/8 in. Grade 8 bolts (zinc plated)
• (2) 5/8 in. Grade 9 steel lock nuts (zinc plated)
• (4) 5/8 in. Grade 8 flat washers (zinc plated)
• Thread Type: Coarse
• Bolt Grade: 8
• Bolt Finish: Zinc Plated
• Bolt Hex Size: 15/16
• Bolt Quantity: Two (2)
• Bolt Type: Hex Head
• Nut Finish: Zinc Plated
• Nut Grade: 9
• Nut Hex Size: 15/16
• Nut Quantity: Two (2)
• Nut Type: Steel Top Lock
• Thread Size: 5/8-11
• Washer Finish: Zinc Plated
• Washer Grade: 8
• Washer Quantity: Four (4)
• Washer Size: 5/8
• Washer Type: Flat