Source for front upper control arm bolts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**wesmigletz** · 01-22-2021, 06:05 PM

I'm looking to replace the cross shaft bolts in my C10 due to rust on the threads.

Who sells the replacement bolts to hold the upper control arms to the crossmember?

**HO455** · 01-22-2021, 06:29 PM

After some 50 years it's quite possible that they may have been replaced in the past with a larger splined version. So to be sure of the spline size I would remove one and measure it before purchasing any replacements.
LMC has a listing for them, but some folks had problems with fitment, likely from the originals being replaced in the past by a front end repair shop. If the repair shop spun the bolt with a an air ratchet they would just drill the hole larger and replace it with the next larger spline. Back in the day some shops installed new bolts as part of the front end rebuild.
Dorman, NAPA, and ARP carry many sizes.

**MikeB** · 01-22-2021, 11:46 PM

They only show u-bolts for lower shafts, but it's a start. I'd also call H&H in Arkansas.
https://www.performanceonline.com/19...m-Cross-Shaft/

OL SKOOL · 01-23-2021, 10:27 AM

Are these the bolts your asking about?

**MikeB** · 01-23-2021, 04:14 PM

Man, how stupid of me.

Don't know what the heck I was thinking.

**wesmigletz** · 01-25-2021, 10:33 AM

Quote:

Originally Posted by OL SKOOL

Are these the bolts your asking about?

Thank you, yes, these are the ones I need.

**wesmigletz** · 01-25-2021, 10:35 AM

Quote:

Originally Posted by MikeB

They only show u-bolts for lower shafts, but it's a start. I'd also call H&H in Arkansas.
https://www.performanceonline.com/19...m-Cross-Shaft/

Thank you, I will check with H&H.

OL SKOOL · 01-25-2021, 11:00 AM

The ones i have in the pics were from LMC. I put in a new to me front crossmember and it already had new upper bolts in it.

**wesmigletz** · 01-25-2021, 11:41 AM

Quote:

Originally Posted by OL SKOOL

The ones i have in the pics were from LMC. I put in a new to me front crossmember and it already had new upper bolts in it.

Thank you, I found them. Item number 8.

https://www.lmctruck.com/1967-72-che...-2-wheel-drive

01-22-2021, 06:05 PM	#1
wesmigletz Senior Member Join Date: Feb 2009 Location: Parker, Texas Posts: 685	Source for front upper control arm bolts I'm looking to replace the cross shaft bolts in my C10 due to rust on the threads. Who sells the replacement bolts to hold the upper control arms to the crossmember? __________________ 1970 2WD K5 1968 Camaro Conv 1967 Chevy SWB 1964 Malibu SS 1957 Corvette Pics www.picturetrail.com/wesmigletz

01-22-2021, 06:29 PM	#2
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,268	Re: Source for front upper control arm bolts After some 50 years it's quite possible that they may have been replaced in the past with a larger splined version. So to be sure of the spline size I would remove one and measure it before purchasing any replacements. LMC has a listing for them, but some folks had problems with fitment, likely from the originals being replaced in the past by a front end repair shop. If the repair shop spun the bolt with a an air ratchet they would just drill the hole larger and replace it with the next larger spline. Back in the day some shops installed new bolts as part of the front end rebuild. Dorman, NAPA, and ARP carry many sizes. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

01-22-2021, 11:46 PM	#3
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,563	Re: Source for front upper control arm bolts They only show u-bolts for lower shafts, but it's a start. I'd also call H&H in Arkansas. https://www.performanceonline.com/19...m-Cross-Shaft/ __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

01-23-2021, 10:27 AM	#4
OL SKOOL Registered User Join Date: Feb 2010 Location: rochelle il. Posts: 355	Re: Source for front upper control arm bolts Are these the bolts your asking about? Attached Images

01-23-2021, 04:14 PM	#5
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,563	Re: Source for front upper control arm bolts Man, how stupid of me. Don't know what the heck I was thinking. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

01-25-2021, 11:00 AM	#8
OL SKOOL Registered User Join Date: Feb 2010 Location: rochelle il. Posts: 355	Re: Source for front upper control arm bolts The ones i have in the pics were from LMC. I put in a new to me front crossmember and it already had new upper bolts in it.



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