My holes won't line up! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DMAN · 02-03-2003, 03:28 PM

I'm replacing cab mounts on my '71 K10. I did the drivers side first with no problem, but when I got to the passenger side the holes would'nt line up. I made sure to leave the bolts in the opposite side that I was working on so the cab would'nt shift,but something moved. Can I use a jack and a 4x4 to shift the cab or is there a better way? I also noticed the drivers side sits 1/2" lower than the pass. side. Is it o.k. to shim the cab that much on one side. I need help!

Alexis · 02-03-2003, 03:50 PM

Did you tighten up the driver side already.....you shouldn't tighten them up till you got everything done. Yes you can shim the body. my blazer had shims on it from factory. Go fig. hopes this helps.

DMAN · 02-03-2003, 03:55 PM

Nothing is tightened yet, It's just sitting on the new bushings. But I can't get the pass. side blts in. Thanks

Blue68 · 02-03-2003, 05:21 PM

You can lift it with a floor jack and a length of board to spread the load. In fact, I doubt it can be done otherwise.

I wouldn't think of shimming unless the cab is not level in relation to the frame, not necessarily in relation to the ground. Otherwise, shim away.

casey · 02-03-2003, 09:43 PM

Yeh my71 4x4 had shims in one side aswell, I almost get the impression, that the frame was tweeked right from the factory, cause the cab mounts had never been out and they had shims, Dman if your cab bolts are loose theres no reason you shoudn't be able to get those bolts in, I did mine like you did one side then the other no problem, yours must of just shifted a bit, and I shimmed mine all over the place just to get every thing to line up nice, I wanted to make sure my box was lined up with cab, to keep that body line nice

DMAN · 02-04-2003, 11:24 AM

Thanks. I guess I'll just keep at it.

02-03-2003, 03:28 PM	#1
DMAN Registered User Join Date: May 2002 Location: Benicia,Ca. Posts: 128	My holes won't line up! I'm replacing cab mounts on my '71 K10. I did the drivers side first with no problem, but when I got to the passenger side the holes would'nt line up. I made sure to leave the bolts in the opposite side that I was working on so the cab would'nt shift,but something moved. Can I use a jack and a 4x4 to shift the cab or is there a better way? I also noticed the drivers side sits 1/2" lower than the pass. side. Is it o.k. to shim the cab that much on one side. I need help! __________________ '71 Custom Deluxe K10, shortbed, fleetside.

02-03-2003, 03:55 PM	#3
DMAN Registered User Join Date: May 2002 Location: Benicia,Ca. Posts: 128	Nothing is tightened yet, It's just sitting on the new bushings. But I can't get the pass. side blts in. Thanks __________________ '71 Custom Deluxe K10, shortbed, fleetside.

02-03-2003, 05:21 PM	#4
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	You can lift it with a floor jack and a length of board to spread the load. In fact, I doubt it can be done otherwise. I wouldn't think of shimming unless the cab is not level in relation to the frame, not necessarily in relation to the ground. Otherwise, shim away. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.

02-04-2003, 11:24 AM	#6
DMAN Registered User Join Date: May 2002 Location: Benicia,Ca. Posts: 128	Thanks. I guess I'll just keep at it. __________________ '71 Custom Deluxe K10, shortbed, fleetside.

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02-03-2003, 03:50 PM	#2
Alexis Member since 2000 Join Date: Dec 2000 Location: Mountain View Ca / Mexico Posts: 7,879	Did you tighten up the driver side already.....you shouldn't tighten them up till you got everything done. Yes you can shim the body. my blazer had shims on it from factory. Go fig. hopes this helps.

02-03-2003, 09:43 PM	#5
casey Registered User Join Date: Jan 2003 Location: Kelowna B.C. Canada Posts: 2,048	Yeh my71 4x4 had shims in one side aswell, I almost get the impression, that the frame was tweeked right from the factory, cause the cab mounts had never been out and they had shims, Dman if your cab bolts are loose theres no reason you shoudn't be able to get those bolts in, I did mine like you did one side then the other no problem, yours must of just shifted a bit, and I shimmed mine all over the place just to get every thing to line up nice, I wanted to make sure my box was lined up with cab, to keep that body line nice



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