Need someone with a 5/7 drop to measure something for me. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67'ShortMonster · 12-06-2005, 05:01 PM

I need someone with a 5/7 drop in their truck to measure to parrallel section of the frame below the cab. I need to know if this straight section of the frame is parrallel with the ground. So just measure from the bottom of the frame to the ground at the front and back of the straight section.
I will also need to know what size of tires you are running in case they are different front to back.

72MARIO · 12-06-2005, 06:42 PM

What are you trying to figure out ?

I only have about a 5- .5.5" drop so I dont thing I am any help.

67'ShortMonster · 12-06-2005, 07:08 PM

I am trying to set the height of the front of the truck relative to a 7" drop in the rear. I have the frame rails apart, and will be fabbing in a mustang II front suspension. I need to locate the frame relative to where the center of the wheels should be.
I am hoping that the section of frame rail that is below the cab (that is nice and straight) is typically parrallel to the ground with the truck sitting level.
So really, i guess it doesn't matter what kind of drop you have.... as long as the truck sits level... have a look and see if the frame rails below the cab are level as well.
It's simple... just hard to explain.

67Fleet · 12-06-2005, 07:26 PM

Just checked mine, and the rockers are on the same plane as the frame, and mine has a little rake to it but it should at 4.5/5.5, so 2" difference (5" front, 7" rear) should put it paralell.

67'ShortMonster · 12-06-2005, 08:08 PM

Thanks... that's awesome... if anyone else can confirm this for me with a couple other trucks... that would be great.

Lumpy33 · 12-07-2005, 04:27 PM

My frame sits 10" off the ground in the back of the cab and 9" off the ground in the front of the cab. Im using 275/45/20 tires. I dont know if thats the info your looking for or not but i hope it helps.

Lumpy33
72 c10 step

polevault1977 · 12-07-2005, 09:24 PM

Well maybe this info can be of some help. I have a 4/6 drop, so I guess you could sub an inch from my measurements. I have 10.75 inch at the front of the cab area on the frame and 11.00 at the rear. I have 245/60/15 tires all the way around. BTW these measurements are take with no sheet metal on the frame. Motor, tranny, and driveline. Danny

12-06-2005, 05:01 PM	#1
67'ShortMonster Registered User Join Date: Aug 2002 Location: Salmon Arm, B.C. Canda Posts: 73	Need someone with a 5/7 drop to measure something for me. I need someone with a 5/7 drop in their truck to measure to parrallel section of the frame below the cab. I need to know if this straight section of the frame is parrallel with the ground. So just measure from the bottom of the frame to the ground at the front and back of the straight section. I will also need to know what size of tires you are running in case they are different front to back.

12-06-2005, 06:42 PM	#2
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Re: Need someone with a 5/7 drop to measure something for me. What are you trying to figure out ? I only have about a 5- .5.5" drop so I dont thing I am any help. __________________ 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

12-06-2005, 07:08 PM	#3
67'ShortMonster Registered User Join Date: Aug 2002 Location: Salmon Arm, B.C. Canda Posts: 73	Re: Need someone with a 5/7 drop to measure something for me. I am trying to set the height of the front of the truck relative to a 7" drop in the rear. I have the frame rails apart, and will be fabbing in a mustang II front suspension. I need to locate the frame relative to where the center of the wheels should be. I am hoping that the section of frame rail that is below the cab (that is nice and straight) is typically parrallel to the ground with the truck sitting level. So really, i guess it doesn't matter what kind of drop you have.... as long as the truck sits level... have a look and see if the frame rails below the cab are level as well. It's simple... just hard to explain.

12-06-2005, 07:26 PM	#4
67Fleet Outlandish Trends - FL Join Date: Jul 2005 Location: Orlando Posts: 1,396	Re: Need someone with a 5/7 drop to measure something for me. Just checked mine, and the rockers are on the same plane as the frame, and mine has a little rake to it but it should at 4.5/5.5, so 2" difference (5" front, 7" rear) should put it paralell. __________________ -Bret 67 short-fleet sold!

12-06-2005, 08:08 PM	#5
67'ShortMonster Registered User Join Date: Aug 2002 Location: Salmon Arm, B.C. Canda Posts: 73	Re: Need someone with a 5/7 drop to measure something for me. Thanks... that's awesome... if anyone else can confirm this for me with a couple other trucks... that would be great.

12-07-2005, 04:27 PM	#6
Lumpy33 Registered User Join Date: Jul 2005 Location: Queen Creek, AZ Posts: 30	Re: Need someone with a 5/7 drop to measure something for me. My frame sits 10" off the ground in the back of the cab and 9" off the ground in the front of the cab. Im using 275/45/20 tires. I dont know if thats the info your looking for or not but i hope it helps. Lumpy33 72 c10 step

12-07-2005, 09:24 PM	#7
polevault1977 Pick'n up the pieces! Join Date: Sep 2002 Location: Marietta, Oklahoma Posts: 198	Re: Need someone with a 5/7 drop to measure something for me. Well maybe this info can be of some help. I have a 4/6 drop, so I guess you could sub an inch from my measurements. I have 10.75 inch at the front of the cab area on the frame and 11.00 at the rear. I have 245/60/15 tires all the way around. BTW these measurements are take with no sheet metal on the frame. Motor, tranny, and driveline. Danny

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