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Old 07-18-2009, 08:32 PM   #1
jess66chevy
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LMC rear gas tank install

Has anyone done a LMC rear mounted gas tank? I bought it as a kit but there was no instructions. This is how it came out when I did it. Of course, there had to be alot of modification.
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Old 07-18-2009, 09:20 PM   #2
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Re: LMC rear gas tank install

would be nice if you did a install tech kinda thing...
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Old 07-19-2009, 06:13 AM   #3
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Re: LMC rear gas tank install

Hereīs a few picīs of my LMC Gas tank kit!

thatīs my way to install the tank!!






















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Old 07-19-2009, 09:08 AM   #4
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Re: LMC rear gas tank install

nice install. what did you have to do to get it in there
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Old 07-19-2009, 10:16 AM   #5
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Re: LMC rear gas tank install

that looks nice fellas!!!!
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Old 07-19-2009, 11:20 AM   #6
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Re: LMC rear gas tank install

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Originally Posted by 70 Suburban View Post
nice install. what did you have to do to get it in there
thatīs really simple , put the tank under the frame , put the metal straps in place and bolt on the straps on the left side of the frame , on the right side of the frame drill two holes in the underside of the frame , drill upside two larger holes in the frame (see pic #2,it shows the passenger side with the two larger holes), put the bolt from the straps thru the frame on the right side and put the fasteners thru the frame on the bolts ! DONE!!!!!!

i hope you understand what i want to say!


Pat

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Old 07-19-2009, 06:13 PM   #7
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Re: LMC rear gas tank install

apache63 the tank looks great but your going to run into issues when you go to install the bed. The first cross sill in front of the rear will hit the tank and fill neck without a ton of mods. jessy66 in the first pic has the right idea with the flush top mount. Hope it all works out for you.
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Old 07-19-2009, 06:44 PM   #8
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Re: LMC rear gas tank install

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Originally Posted by jess66chevy View Post
Has anyone done a LMC rear mounted gas tank? I bought it as a kit but there was no instructions. This is how it came out when I did it. Of course, there had to be alot of modification.
Attachment 479930
I don't know if that notch is a good idea. Seems like it would make the frame really weak.
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Old 07-19-2009, 09:15 PM   #9
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Re: LMC rear gas tank install

IMO the way Apache63 did his is the best way to install them regardless of bed crossmember interference. That can be dealt with. I would rather have the tank as high as possible. Just my .02
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Old 07-19-2009, 09:20 PM   #10
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Re: LMC rear gas tank install

I had to cut the frame a little bit for the gas filler neck. The bed went on with no problems with the gas tank flush mounted.
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Old 07-19-2009, 10:45 PM   #11
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Re: LMC rear gas tank install

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IMO the way Apache63 did his is the best way to install them regardless of bed crossmember interference. That can be dealt with. I would rather have the tank as high as possible. Just my .02
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Old 07-20-2009, 09:22 AM   #12
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Re: LMC rear gas tank install

Mine is done like Apache63. Some pictures are here. http://s49.photobucket.com/albums/f2...ucks/?start=40
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Old 07-20-2009, 09:49 AM   #13
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Re: LMC rear gas tank install

"thatīs really simple , put the tank under the frame , put the metal straps in place and bolt on the straps on the left side of the frame , on the right side of the frame drill two holes in the underside of the frame , drill upside two larger holes in the frame (see pic #2,it shows the passenger side with the two larger holes), put the bolt from the straps thru the frame on the right side and put the fasteners thru the frame on the bolts ! DONE!!!!!!"

Huh?

I think I need to see a close up of the bolts/holes!
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Old 07-20-2009, 10:01 AM   #14
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Re: LMC rear gas tank install

You committed a major structural no-no with the way you cut the frame. I was looking at that last night, trying to come up with a solution that was feasible.

My first choice would be with a piece of round tube, say 4 or 6" diameter, welded to the inside of the frame. Something like the attached sketch.
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Old 07-20-2009, 11:15 AM   #15
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Re: LMC rear gas tank install

Quote:
Originally Posted by Captainfab View Post
IMO the way Apache63 did his is the best way to install them regardless of bed crossmember interference. That can be dealt with. I would rather have the tank as high as possible. Just my .02
True statment about the hight, but if it was me i would rotate the tank 180 so the filler neck is not over the mounting hole for the cross sill. Then the only mod would be to notch the center part of the sill.
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Old 07-20-2009, 11:29 AM   #16
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Re: LMC rear gas tank install

Wouldn't that make it exiting very near the wheel well on the passenger side?
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Old 07-20-2009, 11:46 AM   #17
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Re: LMC rear gas tank install

Quote:
Originally Posted by ol Curt View Post
"thatīs really simple , put the tank under the frame , put the metal straps in place and bolt on the straps on the left side of the frame , on the right side of the frame drill two holes in the underside of the frame , drill upside two larger holes in the frame (see pic #2,it shows the passenger side with the two larger holes), put the bolt from the straps thru the frame on the right side and put the fasteners thru the frame on the bolts ! DONE!!!!!!"

Huh?

I think I need to see a close up of the bolts/holes!
I believe what Pat is saying, correct me if I'm wrong Pat, on the first side you have access to tighten the strap bolts but once the tank is in the way he didn't have the access he needed to tighten the bolts so he drilled two larger holes in the top of the frame rail so he could get a socket and extension in there to tighten the bolts on the lower side of the frame that holds the straps in place.......follow?
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Old 07-20-2009, 11:59 AM   #18
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Re: LMC rear gas tank install

Quote:
Originally Posted by joe231 View Post
I believe what Pat is saying, correct me if I'm wrong Pat, on the first side you have access to tighten the strap bolts but once the tank is in the way he didn't have the access he needed to tighten the bolts so he drilled two larger holes in the top of the frame rail so he could get a socket and extension in there to tighten the bolts on the lower side of the frame that holds the straps in place.......follow?
Yes , Joe youīre right !!
iīll take this week some picīs from the frame and tank!
the bed is already mounted and i fits perfekt !
but one cross sill i cut it into place to fit the gas filler neck!
picīs can say more then 1000 of words!!


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Old 07-20-2009, 12:05 PM   #19
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Re: LMC rear gas tank install

cool!
can't wait
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Old 07-20-2009, 12:09 PM   #20
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Re: LMC rear gas tank install

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cool!
can't wait
iīm fast like a bullet!!!!

found some picīs on my PC , i hope it helps!!!













Pat

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Old 07-20-2009, 12:15 PM   #21
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Re: LMC rear gas tank install



Pat, have you been holding out on us, or did I miss that you have a truck too?????
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Old 07-20-2009, 12:30 PM   #22
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Re: LMC rear gas tank install

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Originally Posted by joe231 View Post


Pat, have you been holding out on us, or did I miss that you have a truck too?????
here take a look on my 63ī Longbed

http://67-72chevytrucks.com/vboard/s...107362&page=18

Pat
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Old 07-20-2009, 12:39 PM   #23
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Re: LMC rear gas tank install

Quote:
Originally Posted by joe231 View Post
I believe what Pat is saying, correct me if I'm wrong Pat, on the first side you have access to tighten the strap bolts but once the tank is in the way he didn't have the access he needed to tighten the bolts so he drilled two larger holes in the top of the frame rail so he could get a socket and extension in there to tighten the bolts on the lower side of the frame that holds the straps in place.......follow?
Ok, I get it now. If you knew or had marked the spots for the bolts couldn't you just place the bolts in the hole with the threads down and weld the head of the bolt to the frame without having to put more holes in the top of the frame?
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Old 07-20-2009, 12:52 PM   #24
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Re: LMC rear gas tank install

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Originally Posted by Apache63 View Post
here take a look on my 63ī Longbed

http://67-72chevytrucks.com/vboard/s...107362&page=18

i remember now!!
nice truck!

Pat
Quote:
Originally Posted by ol Curt View Post
Ok, I get it now. If you knew or had marked the spots for the bolts couldn't you just place the bolts in the hole with the threads down and weld the head of the bolt to the frame without having to put more holes in the top of the frame?
yeah, or even weld nuts on top of the lower lip of the frame.
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Old 07-20-2009, 12:54 PM   #25
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Re: LMC rear gas tank install

Quote:
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Ok, I get it now. If you knew or had marked the spots for the bolts couldn't you just place the bolts in the hole with the threads down and weld the head of the bolt to the frame without having to put more holes in the top of the frame?
i think it is possible to weld the boltīs to the frame !
but i donīt know if it is the best way !
so i only can say try try try which way is the best way for you!


Pat
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