Trailing arm to crossmember bolt size - The 1947 - Present Chevrolet & GMC Truck Message Board Network

EARNHARDT#3 · 03-06-2016, 05:58 PM

I am replacing my trailing arms soon. The original bolts where the front of the trailing arm mounts to the cross member are very rusty and will need to be replaced. Does anybody happen to know the size of these bolts so I can get some beforehand?

iostorm · 03-06-2016, 07:03 PM

3/4" x4"

EARNHARDT#3 · 03-07-2016, 10:36 AM

Quote:

Originally Posted by iostorm

3/4" x4"

Thank you!

iostorm · 03-07-2016, 10:39 AM

No problem I am just getting ready to install my new trailing arms and bought the grade 8 ones at tractor supply.

EARNHARDT#3 · 03-07-2016, 12:38 PM

Quote:

Originally Posted by iostorm

No problem I am just getting ready to install my new trailing arms and bought the grade 8 ones at tractor supply.

I kinda feel stupid asking this question now that I think about it. Some simple measurements of the busing insert and a glance under my truck I could've figured it out. Thanks again though!!

LostMy65 · 06-15-2017, 10:24 AM

Could we get another verification of size?
Thanks

**LockDoc** · 06-15-2017, 02:21 PM

Quote:

Originally Posted by LostMy65

Could we get another verification of size?
Thanks

The above would be correct. If you wanted to get technical, The original bolt I have is 3 15/16 inches long from under the head to the tip of the threads and .747 diameter (3/4" is .750)

LockDoc

03-06-2016, 05:58 PM	#1
EARNHARDT#3 Registered User Join Date: May 2014 Location: PA Posts: 1,417	Trailing arm to crossmember bolt size I am replacing my trailing arms soon. The original bolts where the front of the trailing arm mounts to the cross member are very rusty and will need to be replaced. Does anybody happen to know the size of these bolts so I can get some beforehand? __________________ 1967 C10, LWB, 250, Powerglide, PS, PB, 3/4 STATIC DROP

03-06-2016, 07:03 PM	#2
iostorm Registered User Join Date: Oct 2015 Location: Grafton Ohio Posts: 94	Re: Trailing arm to crossmember bolt size 3/4" x4"

03-07-2016, 10:39 AM	#4
iostorm Registered User Join Date: Oct 2015 Location: Grafton Ohio Posts: 94	Re: Trailing arm to crossmember bolt size No problem I am just getting ready to install my new trailing arms and bought the grade 8 ones at tractor supply.

06-15-2017, 10:24 AM	#6
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Trailing arm to crossmember bolt size Could we get another verification of size? Thanks __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035



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