Long box to short box - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Boyd B · 03-06-2012, 01:32 AM

I am just starting this project, the truck was my Dad's 1970 GMC 2500 long box, Bought new. I am taking it all the way down, Bringing it back up as a short box step side, I have a Cummins 4bt and T5 trans, 3.08 10 bolt diff. If I did my math right and the 4 banger has the torgue I should see good economy w/o sacrificing road speed. Couple questioned to you seasoned vets, any hints to a good frame chop to and suggestions on suspension options?

**LockDoc** · 03-06-2012, 10:20 PM

-
First off

to the board from Iowa...

There is a lot of different information in the FAQ forum. Scroll down to the bottom of this page and you will see the "Forum Jump" box. Click on the little down arrow on the right side of the box and scroll down to "FAQ Truck Tech". On that page go down to "Thread/Thread Starter: FAQ Index Thread". When you get into that scroll through the different sections and you will find answers to questions you haven't even thought of yet....

I could have just posted a direct link but there is a lot of good info in the FAQ section and now the people that read this thread will know how to get to it. Thanks to Krue for indexing the FAQ's

I shortened a frame using the instructions in the "Brakes and Suspension related FAQ's" section and it worked out great. I think there are also threads on installing air bags and static drops.

You might want to check out the "Projects and builds" forum for some good info too.

LockDoc

Boyd B · 03-07-2012, 10:27 AM

Thanks, Loc Doc!!

PanelDeland · 03-07-2012, 10:33 AM

I would just add to look around and consider boxing the frame.With the torque you'll have it may need the strength.

Boyd B · 03-07-2012, 01:44 PM

Quote:

Originally Posted by PanelDeland

I would just add to look around and consider boxing the frame.With the torque you'll have it may need the strength.

Thanks for the thought PanelDeland, this little engine is rated @ 105 BHP & 265 ft lbs torque. I am going for unique and fuel economy, not monster truck. That being said, I was planning to glove the frame app 2' centered on a 45* cut and weld.

no moa · 03-07-2012, 01:51 PM

mine was chopped to a SWB. Was a real PITA for me, when i found the weld marks. lol
Good luck on your build. Like the cumming's idea.

03-06-2012, 01:32 AM	#1
Boyd B Registered User Join Date: Mar 2012 Location: Molt, Montana Posts: 29	Long box to short box I am just starting this project, the truck was my Dad's 1970 GMC 2500 long box, Bought new. I am taking it all the way down, Bringing it back up as a short box step side, I have a Cummins 4bt and T5 trans, 3.08 10 bolt diff. If I did my math right and the 4 banger has the torgue I should see good economy w/o sacrificing road speed. Couple questioned to you seasoned vets, any hints to a good frame chop to and suggestions on suspension options?

03-06-2012, 10:20 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,432	Re: Long box to short box - First off to the board from Iowa... There is a lot of different information in the FAQ forum. Scroll down to the bottom of this page and you will see the "Forum Jump" box. Click on the little down arrow on the right side of the box and scroll down to "FAQ Truck Tech". On that page go down to "Thread/Thread Starter: FAQ Index Thread". When you get into that scroll through the different sections and you will find answers to questions you haven't even thought of yet.... I could have just posted a direct link but there is a lot of good info in the FAQ section and now the people that read this thread will know how to get to it. Thanks to Krue for indexing the FAQ's I shortened a frame using the instructions in the "Brakes and Suspension related FAQ's" section and it worked out great. I think there are also threads on installing air bags and static drops. You might want to check out the "Projects and builds" forum for some good info too. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

03-07-2012, 10:27 AM	#3
Boyd B Registered User Join Date: Mar 2012 Location: Molt, Montana Posts: 29	Re: Long box to short box Thanks, Loc Doc!!

03-07-2012, 10:33 AM	#4
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: Long box to short box I would just add to look around and consider boxing the frame.With the torque you'll have it may need the strength. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

03-07-2012, 01:51 PM	#6
no moa Registered User Join Date: Nov 2009 Location: maine Posts: 2,315	Re: Long box to short box mine was chopped to a SWB. Was a real PITA for me, when i found the weld marks. lol Good luck on your build. Like the cumming's idea. __________________ 1972 C10 Deluxe.Shortbed. 402/400. A/C, white interior, needs complete restore. Project Red, white and blue. Used to be a Longbed apperently. http://67-72chevytrucks.com/vboard/s...d.php?t=451950 1971 c10 step 250 3 OTT 1969 c30 TOW-MATER. 307 4 speed, holmes 440 body. http://67-72chevytrucks.com/vboard/s...d.php?t=451082 2006 CTS-V LS2 6spd.



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