Cab change, frame mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JimKshortstep4x4 · 01-01-2005, 09:14 AM

As part of the cab change we are redoing the frame as necessary prior to painting. The previous owner had repaired the frame frame mounts and his bird dropping welding on the repairs looked shaky. I made up some plates, (3 1/2 x 3 1/2 for the front mounts, 3 1/2 x 3 for the rear) with 1 1/2 holes bored into them. The plates are 1/8 thick. With my son's greatly needed assistance we repaired the four frame mounts.

We started by cutting out the old weld using a sawzall and air cutoff grinder.

pic 1 shows what we cut out, some of the others were worse.

pic 2 shows the cut out with the old metal removed and the area prepared for welding.

pic 3 shows positioning of the plate ready for welding, (we located the plate using the center of the hole for reference).

pic 4 shows the plate Craig welded and ground, ready for prime and paint.

Jim

vtblazer · 01-01-2005, 09:18 AM

Doing it right the first time is always the way to go!
Nice job on the repairs.

JimKshortstep4x4 · 01-01-2005, 09:23 AM

vt blazer,

You are right and it did not take long to do the repair right. The plates appear to be the way to go.

Jim

72MARIO · 01-01-2005, 11:50 AM

Looks good.
I also had to repair my frame the same way you could never tell though.

**Canadian694x4** · 01-01-2005, 05:33 PM

Nice Work!

Rollie396 · 01-01-2005, 05:45 PM

looks good!I did the same thing to mine just last week.I couldn't believe how pitted the surface of the brackets were!Took less than an hour and it's good for another 30+ yrs

.

**JIMs70GMC** · 01-01-2005, 11:04 PM

Looks good Jim. Did you contemplate trying to find good mounts and cut off the rivets and bolt on some from the southwest?

JimKshortstep4x4 · 01-02-2005, 07:59 AM

JIMs70GMC,

Since the brackets were in good shape and the rivets held the brackets tightly to the frame, changing them did not seem like a good option.

I am not sure if you can find brackets that did not have some hole damage, anyway.

Jim

zooza · 01-02-2005, 10:58 AM

nice job, its good that you show pretty much all aspects of the repair. thanks.!

01-01-2005, 09:14 AM	#1
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Cab change, frame mounts As part of the cab change we are redoing the frame as necessary prior to painting. The previous owner had repaired the frame frame mounts and his bird dropping welding on the repairs looked shaky. I made up some plates, (3 1/2 x 3 1/2 for the front mounts, 3 1/2 x 3 for the rear) with 1 1/2 holes bored into them. The plates are 1/8 thick. With my son's greatly needed assistance we repaired the four frame mounts. We started by cutting out the old weld using a sawzall and air cutoff grinder. pic 1 shows what we cut out, some of the others were worse. pic 2 shows the cut out with the old metal removed and the area prepared for welding. pic 3 shows positioning of the plate ready for welding, (we located the plate using the center of the hole for reference). pic 4 shows the plate Craig welded and ground, ready for prime and paint. Jim Attached Images

01-01-2005, 09:18 AM	#2
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,537	Great Work Doing it right the first time is always the way to go! Nice job on the repairs.

01-01-2005, 11:50 AM	#4
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Looks good. I also had to repair my frame the same way you could never tell though. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

01-01-2005, 05:33 PM	#5
Canadian694x4 Born To Lose Club Join Date: Feb 2003 Location: Calgary, Alberta/Oxenden, Ontario, Great White North Posts: 13,307	Nice Work! __________________ Brian Smith - "Born To Lose" 1969 Chevrolet K10 LWB Fleetside - Proud Owner For 22 Yrs - 1 of 208 Built & Sold In Canada!- 283 V8/350TH/NP208, 2" All Spring Lift, 32" Good Year MT/R's. 1972 GMC K2500 Custom LWB Fleetside - Proud Owner For 3 Yrs - 1 of 571 Built & Sold In Canada! - 350 V8/SM465/NP205, 4” Rough Country Lift, 33” Interco TSL Thornbirds 2007.5 GMC Sierra SLE 2500HD 4x4 - Proud Owner For 17 Yrs- 6.6L V8 Duramax Diesel/Allison 1000, 2" Lift, 33" Mickey Thompson MTZ's. 2008 Yamaha Raptor 700r - Proud Owner For 15 Yrs - ITP Mud Lites. 2015 John Deere 1025R - Proud Owner For 8 Yrs - 24HP Diesel/H120/54D/260B/SB1154.

01-01-2005, 05:45 PM	#6
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	looks good!I did the same thing to mine just last week.I couldn't believe how pitted the surface of the brackets were!Took less than an hour and it's good for another 30+ yrs . __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics

01-01-2005, 09:23 AM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	vt blazer, You are right and it did not take long to do the repair right. The plates appear to be the way to go. Jim

01-01-2005, 11:04 PM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Looks good Jim. Did you contemplate trying to find good mounts and cut off the rivets and bolt on some from the southwest? __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

01-02-2005, 07:59 AM	#8
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	JIMs70GMC, Since the brackets were in good shape and the rivets held the brackets tightly to the frame, changing them did not seem like a good option. I am not sure if you can find brackets that did not have some hole damage, anyway. Jim

01-02-2005, 10:58 AM	#9
zooza Registered User Join Date: Jul 2004 Location: LINDEN, TN. Posts: 260	nice job, its good that you show pretty much all aspects of the repair. thanks.!

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