67 GMC Frame and BB Motor Mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**DREW67** · 06-17-2008, 02:15 PM

Here's the question thoughs of you who have a 67 with a Big Block what motor mounts did you use? Was there any modification you had to do. I have 72 and 68-71 motor mounts and they do not fit properly. Not for sure what to do now. Any help is appreciated.

Thanks,
DREW67

**DREW67** · 06-18-2008, 08:01 PM

Maybe this will help Pictures!!!

smoknbarrels · 06-18-2008, 08:16 PM

you must trim the frame rails in the area i highlighted, I took some photos of mine, but i forgot the camera at the shop, I will post them up this weekend if you like, it clearly shows the area to trim, after that the mounts fit perfect!

its ends up being about 1/2" of material to cut off.. but there's lots of meat there.

**DREW67** · 06-18-2008, 08:40 PM

Thanks, but I really hate to cut the frame.

smoknbarrels · 06-18-2008, 08:48 PM

well, as far as I know it's either cut a notch, or drill new holes in the frame.. I haven't found anyone to get around it yet or make them fit, unless they build new perches..
not sure whats so bad about notching the frame a little? the '68+ come factory notched to fit the mounts i believe.
same thing if you want power steering in a '67. I pounded in a dimple into the frame rail just like the '68+ frames come stock.

**DREW67** · 06-18-2008, 09:01 PM

You are right I just measured the frame rail on my 72 and it's 1-3/4" and on my 67 it's 2-3/4 wow I never paid attention to that. I guess sense I have both mounts which ones are the best 68-71 or 72 motor mounts.

Thanks

**Joesjunk** · 06-18-2008, 10:08 PM

I see you got it figured out Andrew!!!

**DREW67** · 06-18-2008, 10:12 PM

Joe which mounts are better 68-71 or 72

**clay68c10** · 06-18-2008, 10:13 PM

Use the 72 mounts. They're safer and they isolate the engine vibration a lot better.

**DREW67** · 06-18-2008, 10:17 PM

Thanks Guys this was very helpful!!!!!

**Joesjunk** · 06-18-2008, 10:23 PM

I would use the 72's also

**DREW67** · 06-18-2008, 10:27 PM

Then it's a deal the 72's are going in.

06-17-2008, 02:15 PM	#1
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	67 GMC Frame and BB Motor Mounts Here's the question thoughs of you who have a 67 with a Big Block what motor mounts did you use? Was there any modification you had to do. I have 72 and 68-71 motor mounts and they do not fit properly. Not for sure what to do now. Any help is appreciated. Thanks, DREW67 __________________ DREW67

06-18-2008, 08:01 PM	#2
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	Re: 67 GMC Frame and BB Motor Mounts Maybe this will help Pictures!!! Attached Images __________________ DREW67

06-18-2008, 08:16 PM	#3
smoknbarrels Registered Mail Join Date: Jun 2006 Location: Alberta, Canada Posts: 513	Re: 67 GMC Frame and BB Motor Mounts you must trim the frame rails in the area i highlighted, I took some photos of mine, but i forgot the camera at the shop, I will post them up this weekend if you like, it clearly shows the area to trim, after that the mounts fit perfect! its ends up being about 1/2" of material to cut off.. but there's lots of meat there. Attached Images __________________ '67 chev 496, lwb to swb, bagged - pro street project

06-18-2008, 08:40 PM	#4
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	Re: 67 GMC Frame and BB Motor Mounts Thanks, but I really hate to cut the frame. __________________ DREW67

06-18-2008, 08:48 PM	#5
smoknbarrels Registered Mail Join Date: Jun 2006 Location: Alberta, Canada Posts: 513	Re: 67 GMC Frame and BB Motor Mounts well, as far as I know it's either cut a notch, or drill new holes in the frame.. I haven't found anyone to get around it yet or make them fit, unless they build new perches.. not sure whats so bad about notching the frame a little? the '68+ come factory notched to fit the mounts i believe. same thing if you want power steering in a '67. I pounded in a dimple into the frame rail just like the '68+ frames come stock. __________________ '67 chev 496, lwb to swb, bagged - pro street project

06-18-2008, 09:01 PM	#6
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	Re: 67 GMC Frame and BB Motor Mounts You are right I just measured the frame rail on my 72 and it's 1-3/4" and on my 67 it's 2-3/4 wow I never paid attention to that. I guess sense I have both mounts which ones are the best 68-71 or 72 motor mounts. Thanks __________________ DREW67 Last edited by DREW67; 06-18-2008 at 09:01 PM.

06-18-2008, 10:08 PM	#7
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Re: 67 GMC Frame and BB Motor Mounts I see you got it figured out Andrew!!! __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

06-18-2008, 10:12 PM	#8
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	Re: 67 GMC Frame and BB Motor Mounts Joe which mounts are better 68-71 or 72 __________________ DREW67

06-18-2008, 10:13 PM	#9
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,990	Re: 67 GMC Frame and BB Motor Mounts Use the 72 mounts. They're safer and they isolate the engine vibration a lot better. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

06-18-2008, 10:17 PM	#10
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	Re: 67 GMC Frame and BB Motor Mounts Thanks Guys this was very helpful!!!!! __________________ DREW67

06-18-2008, 10:23 PM	#11
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Re: 67 GMC Frame and BB Motor Mounts I would use the 72's also __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

06-18-2008, 10:27 PM	#12
DREW67 Senior Member Join Date: Aug 2001 Location: Kansas City, Mo Posts: 1,031	Re: 67 GMC Frame and BB Motor Mounts Then it's a deal the 72's are going in. __________________ DREW67

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