Question concerning bolts for frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68jimmy · 11-25-2004, 01:40 AM

I'm getting ready to swap out my 3/4 ton suspension for a 1/2 setup and I will have to remove the crossmember rivets. I'm going to use a 7/16 bolt with a flat and lock washer but was wondering if I should go with grade 5 or 8? And should I consider using the nylock nuts instead or use some red threadlocker?

Thanks, and have a safe and happy thanksgiving!

greasemonkey · 11-25-2004, 02:00 AM

Grade 8.

68LSS1 · 11-25-2004, 03:58 AM

Here we go again.

I agree with the grade 8 and going with either the nylon lock nuts or thread locker will be fine. I'm using the nylon locking type but in stainless steel.

**N2TRUX** · 11-25-2004, 10:51 AM

Take a look here-grade 5 vs grade 8 bolts
And here-can Gd 8 bolt replace crossmember rivet?

68jimmy · 11-25-2004, 07:36 PM

Thanks for the replies. It wasn't until I submitted my post that I realized that someone had asked the same question earlier...

thanks again.

68LSS1 · 11-25-2004, 09:02 PM

68jimmy, no problem and don't take it wrong. There's been a few "discussions" about the difference between grade 5 and grade 8 and also the use of stainless. I think for the most part everyone is on the same page.

11-25-2004, 01:40 AM	#1
68jimmy Registered User Join Date: Dec 2003 Location: albuquerque Posts: 431	Question concerning bolts for frame I'm getting ready to swap out my 3/4 ton suspension for a 1/2 setup and I will have to remove the crossmember rivets. I'm going to use a 7/16 bolt with a flat and lock washer but was wondering if I should go with grade 5 or 8? And should I consider using the nylock nuts instead or use some red threadlocker? Thanks, and have a safe and happy thanksgiving! __________________ 78 C10 LWB Super Cheyenne

11-25-2004, 02:00 AM	#2
greasemonkey Registered User Join Date: Dec 2001 Location: Pace, FL Posts: 2,155	Grade 8. __________________ 1942 Master Deluxe 1969 C/10 1985 Blazer CUCV 1987 Jimmy 2004 Tahoe 2005 Silverado 1500 2005 Silverado 3500

11-25-2004, 03:58 AM	#3
68LSS1 Registered User Join Date: Dec 2002 Location: Tampa Posts: 1,191	Here we go again. I agree with the grade 8 and going with either the nylon lock nuts or thread locker will be fine. I'm using the nylon locking type but in stainless steel. __________________ '68 Short Step LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc

11-25-2004, 10:51 AM	#4
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Take a look here-grade 5 vs grade 8 bolts And here-can Gd 8 bolt replace crossmember rivet? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

11-25-2004, 07:36 PM	#5
68jimmy Registered User Join Date: Dec 2003 Location: albuquerque Posts: 431	Thanks for the replies. It wasn't until I submitted my post that I realized that someone had asked the same question earlier... thanks again. __________________ 78 C10 LWB Super Cheyenne

11-25-2004, 09:02 PM	#6
68LSS1 Registered User Join Date: Dec 2002 Location: Tampa Posts: 1,191	68jimmy, no problem and don't take it wrong. There's been a few "discussions" about the difference between grade 5 and grade 8 and also the use of stainless. I think for the most part everyone is on the same page. __________________ '68 Short Step LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.