Will 73+ lower a arm u bolts fit 72 front end? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70 Jimmy · 03-08-2002, 05:55 PM

I know I keep asking Q's about the 73 up stuff but the parts houses around here carry alot of that year stuff and I don't trust thier books! Thanks.

------------------
"KEEP IT DOWN!"
70 Jimmy 454 2wd
56 GMC Big Window

nosto · 03-08-2002, 08:03 PM

I put '77 front end pieces, including lower control arms, on my '67. Had to buy new U-bolts (from my local Chevy dealer) and drill the existing holes up to 9/16". They went right in.

Rick

------------------
Absecon, NJ

1972 Triumph TR6 - full resto finally done!
1975 F**D F-100 - rusty, but reliable
1982 HD XLH-1000
1967 C-10, shortstep, 350/M21 4spd, headers, Flowmasters, Edelbrock, 600 Holley, 3/4 drop - in a million pieces
See some pieces at:
www.freephoto-i.net
username nosto53

nosto · 03-08-2002, 08:09 PM

Oops, sorry; didn't read the topic correctly! My new answer is 'I don't know'.

Rick

*Fast68Chevy* · 03-09-2002, 12:14 AM

73-87 arms will bolt to your engine cradle, yes, they use the rubber style bushings instead of the big metal solid style bushings like on all 3/4 and 1 ton trucks of all years

happy swapping !

70 Jimmy · 03-09-2002, 12:38 AM

Maybe I'm being dense but does this mean the U bolts will work? 30 hours OT has fried my brain this week! :P***

------------------
"KEEP IT DOWN!"
70 Jimmy 454 2wd
56 GMC Big Window

CDN_GS455 · 03-09-2002, 11:51 AM

I used a '81 donor truck for my swap and the u-bolts would NOT work. I used the old ones, rather than drill out the crossmember. You could go either way. Good luck!

Brian

------------------
'68 Shortbox Stepside -- 250 cu.in. 4 speed, disc swap up front
'00 Grand Prix GTP Sedan

I AM CANADIAN!!! Go Oilers!

70 Jimmy · 03-09-2002, 12:52 PM

Thanks, I sure don't mind drilling the holes out, especially if it means a larger bolt. Anyone know if these are a higher grade bolt are just your typical hardware store variety?

------------------
"KEEP IT DOWN!"
70 Jimmy 454 2wd
56 GMC Big Window

69 longhorn · 03-09-2002, 01:39 PM

70Jimmy,i think those U bolts will be a dealer item,& a high grade fastener. if your old ones are in good shape,I would use them..........69 longhorn.

70 Jimmy · 03-09-2002, 02:17 PM

I would use them but I lost 2 of them!

*Fast68Chevy* · 03-09-2002, 06:25 PM

i have one and can find other., oh wait, i have a whole front end, how many do you want ? i have to disassemble the front so i can hide the parts in attic because of the damn city code warning i got today

interested ? i dotn need em was gonna scrap em or something anyways they are 3/4 ton ones, IE the larger ones like you say

these are not a hardware store item lol !
these are hardened steel and special shape and diameter, so... i owudnt be putting inferior bolts on somethig so important ! if they break then there goes your front end down to the pavement!!

[This message has been edited by Fast68Chevy (edited March 09, 2002).]

03-08-2002, 05:55 PM	#1
70 Jimmy aka Crusher, Crushergmc Join Date: Mar 2000 Location: Oregon Posts: 1,834	Will 73+ lower a arm u bolts fit 72 front end? I know I keep asking Q's about the 73 up stuff but the parts houses around here carry alot of that year stuff and I don't trust thier books! Thanks. ------------------ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window __________________ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window "It's funny till someone gets hurt, then it's freakin' hilarious"

03-08-2002, 08:03 PM	#2
nosto Flamin' Bass Join Date: Aug 2001 Location: Galloway, NJ, US Posts: 315	I put '77 front end pieces, including lower control arms, on my '67. Had to buy new U-bolts (from my local Chevy dealer) and drill the existing holes up to 9/16". They went right in. Rick ------------------ Absecon, NJ 1972 Triumph TR6 - full resto finally done! 1975 FD F-100 - rusty, but reliable 1982 HD XLH-1000 1967 C-10, shortstep, 350/M21 4spd, headers, Flowmasters, Edelbrock, 600 Holley, 3/4 drop - in a million pieces See some pieces at: www.freephoto-i.net username nosto53 __________________ Rick Olson /nosto/ Galloway, NJ Pics : http://community.webshots.com/user/nosto53 1972 Triumph TR6 - full resto, now with a Toyota 5-speed 1975 FD F-100 - rusty, but reliable 1982 HD XLH-1000 1967 C-10, shortstep, 350/M21 4spd, nitrogen tank fills fast bags on 4 corners, Toyo 255/45X20s on American Eagle 221 20X8s, shaved locks and handles, antenna, fuel filler, tiny C-notch, rear fuel tank, long headers, Edelbrock, worn 600 Holley, Checkmate flush hard cover, rear pan, custom LED taillights - painted it, too! But don't like it so I'm gonna do it again!!

03-08-2002, 08:09 PM	#3
nosto Flamin' Bass Join Date: Aug 2001 Location: Galloway, NJ, US Posts: 315	Oops, sorry; didn't read the topic correctly! My new answer is 'I don't know'. Rick __________________ Rick Olson /nosto/ Galloway, NJ Pics : http://community.webshots.com/user/nosto53 1972 Triumph TR6 - full resto, now with a Toyota 5-speed 1975 F**D F-100 - rusty, but reliable 1982 HD XLH-1000 1967 C-10, shortstep, 350/M21 4spd, nitrogen tank fills fast bags on 4 corners, Toyo 255/45X20s on American Eagle 221 20X8s, shaved locks and handles, antenna, fuel filler, tiny C-notch, rear fuel tank, long headers, Edelbrock, worn 600 Holley, Checkmate flush hard cover, rear pan, custom LED taillights - painted it, too! But don't like it so I'm gonna do it again!!

03-09-2002, 12:38 AM	#5
70 Jimmy aka Crusher, Crushergmc Join Date: Mar 2000 Location: Oregon Posts: 1,834	Maybe I'm being dense but does this mean the U bolts will work? 30 hours OT has fried my brain this week! :P*** ------------------ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window __________________ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window "It's funny till someone gets hurt, then it's freakin' hilarious"

03-09-2002, 11:51 AM	#6
CDN_GS455 Registered User Join Date: Sep 2001 Location: Alberta, Canada Posts: 171	I used a '81 donor truck for my swap and the u-bolts would NOT work. I used the old ones, rather than drill out the crossmember. You could go either way. Good luck! Brian ------------------ '68 Shortbox Stepside -- 250 cu.in. 4 speed, disc swap up front '00 Grand Prix GTP Sedan I AM CANADIAN!!! Go Oilers! __________________ '68 Shortbox Stepside -- 250 cu.in. 4 speed, disc swap up front '00 Grand Prix GTP Sedan I AM CANADIAN!!! Go Oilers!

03-09-2002, 12:14 AM	#4
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	73-87 arms will bolt to your engine cradle, yes, they use the rubber style bushings instead of the big metal solid style bushings like on all 3/4 and 1 ton trucks of all years happy swapping !

03-09-2002, 12:52 PM	#7
70 Jimmy aka Crusher, Crushergmc Join Date: Mar 2000 Location: Oregon Posts: 1,834	Thanks, I sure don't mind drilling the holes out, especially if it means a larger bolt. Anyone know if these are a higher grade bolt are just your typical hardware store variety? ------------------ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window __________________ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window "It's funny till someone gets hurt, then it's freakin' hilarious"

03-09-2002, 01:39 PM	#8
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	70Jimmy,i think those U bolts will be a dealer item,& a high grade fastener. if your old ones are in good shape,I would use them..........69 longhorn. __________________ http://community.webshots.com/user/hotrodhorn

03-09-2002, 02:17 PM	#9
70 Jimmy aka Crusher, Crushergmc Join Date: Mar 2000 Location: Oregon Posts: 1,834	I would use them but I lost 2 of them! __________________ "KEEP IT DOWN!" 70 Jimmy 454 2wd 56 GMC Big Window "It's funny till someone gets hurt, then it's freakin' hilarious"

03-09-2002, 06:25 PM	#10
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	i have one and can find other., oh wait, i have a whole front end, how many do you want ? i have to disassemble the front so i can hide the parts in attic because of the damn city code warning i got today interested ? i dotn need em was gonna scrap em or something anyways they are 3/4 ton ones, IE the larger ones like you say these are not a hardware store item lol ! these are hardened steel and special shape and diameter, so... i owudnt be putting inferior bolts on somethig so important ! if they break then there goes your front end down to the pavement!! [This message has been edited by Fast68Chevy (edited March 09, 2002).]



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.