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#1 |
Registered User
Join Date: Aug 2002
Location: Meridian, Idaho
Posts: 164
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Lower Control Arm U-Bolts
Are the 4 U-bolts that hold the front lower control arm shafts to the frame supposed to be the same size? I noticed I have two that are slightly larger than the other two. If two are supposed to be a little larger, where do the larger ones go?
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1972 C-10 LWB, 400/350, 2WD 1972 C-20 Custom Camper, 350/350, 4WD (Converted) |
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#2 |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
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Mine were all the same size.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
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#3 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Sounds like someone only replaced U-bolts that were bad at one point. Some of the origanals were the smaller ones, however they would have all been that way. The larger ones were produced to replace the smaller ones, and all that are available now. You probably have two different size holes in your crossmember also, so if you want to reuse the U-bolts then the larger ones will not fit in the smaller holes. If they do then it realy doesn't matter where they go. I wouldn't re-use them myself, the nuts are self locking and may not work as well the second time around. WES www.ClassicHeartbeat.com
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On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys |
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#4 |
Registered User
Join Date: Aug 2002
Location: Meridian, Idaho
Posts: 164
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Thanks for the details Wes. Should I be able to get suitable replacements with self locking nuts at a bolt supply house or would I need to special order them from a part vendor?
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1972 C-10 LWB, 400/350, 2WD 1972 C-20 Custom Camper, 350/350, 4WD (Converted) |
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#5 |
Confirmed Truckaholic
![]() Join Date: Oct 2000
Location: Sarver,PA 16055
Posts: 732
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I just bought these parts at napa, the new bolts were 9/16". I thought I would have to drill the holes out but they just fit.
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#6 |
Registered User
Join Date: Aug 2002
Location: Meridian, Idaho
Posts: 164
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Should these U-bolts be grade 8?
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1972 C-10 LWB, 400/350, 2WD 1972 C-20 Custom Camper, 350/350, 4WD (Converted) |
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#7 |
Registered User
Join Date: Mar 2003
Location: Wichita, KS
Posts: 137
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I just re-did my front end this past weekend...
In the picture you posted one has flat washers, and the other has lock washers. I replaced my self locking nuts with grade 8 nuts, and lock washers. Anybody se a problem with using lock washers, instead on self-locking nuts?
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![]() 350/350 3.73 Next; 335hp GM Crate |
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#8 | |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Quote:
I purchased 1/2" grade 8 flanged locknuts with black oxide coating at the hardware store, they were over a buck each!
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Fred There is no such thing as too much cam...just not enough engine. ![]() |
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