Can Grade 8 Bolts be Used to Install MORryde Cushioned Pin Box
Updated 08/05/2026 | Published 08/02/2026
Question:
Last year I purchased a morryde pin box. The pin box on my 5th wheel is a 1621. When I installed it I used grade 8 bolts torque to 170 foot lbs. I was wondering if I should have used grade 5 bolts like what was on the original pin box. Any assistance on this will be appreciated.
asked by: Randy A
0
Expert Reply:
Hey Randy, Grade 8 bolts are actually stronger than Grade 5 so what you went with to install your MORryde pin box # MR74VR is perfectly fine. Your torque rating is good too. How are you liking the MORryde so far?
expert reply by:
Jameson C
0
Product Page this Question was Asked From
MORryde Cushioned 5th Wheel Pin Box for 11.5K to 14K Trailers w/ Lippert 1621 and 1621HD
- 5th Wheel Pin Box
- Upgraded Pin Box
- Reduces Chucking
- 21000 lbs
- Rubber Spring Suspension
- Fixed Turret
- Lippert 1621
- Lippert 1621HD
- MORryde
more information >
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