Bolt & Nut size for lower control arms [Archive] - Chevelle Tech

: Bolt & Nut size for lower control arms


TLee38
Jul 13th, 09, 10:12 PM
I searched the forums and the assembly manual, but haven't found out what I need. I bought the DSE 2 kit for the front & rear of my 66 chevelle and must say I love this stuff. But there were no bolts to bolt the lower control arms to the frame and it's been a year and a half since I took it apart and I can't find the stock ones. I need to know what size bolt and nut to use, what grade to use and whether or not I need to use washers with these. Any help is greatly appreciated.

GenPac
Jul 14th, 09, 12:07 AM
On my '69 I used 4" long 1/2" grade 8 bolts and grade 8 mechanical lock nuts (the kind crimped on three sides) no washers needed, but I don't see how they can hurt.

Finally
Jul 14th, 09, 8:57 AM
4" long 1/2" grade 8 is what I used. I used a lock wasjer and nylon lock nuts. Couldn't find the other locking nuts. Tractor Supply sells grade 8 hardware by the pound, $4 a pound. Use a flat washer on the bolt that slides through the frame, front of lower arm.

3" long 7/16" bolts for the rear sway bar.

TLee38
Jul 14th, 09, 3:40 PM
Thanks guys, that's a big help.