79 GMC Sierra LWB 6.0L swap - Page 10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

79gmc5.3 · 03-30-2011, 07:49 PM

Hey Guys: Installed a front sway bar yesterday, Man what difference. Bought a 12 bolt posi with 373 gears today, got a rear disc conversion kit from CPP will start that this weekend also looking to do a 3/4 drop with 18" wheels soon. If any of you have pics of LWB with a 3/4 drop please post pics so I can get an idea of what mine might look like. Thanks

menace121978 · 03-31-2011, 12:45 AM

happy to see someones making some progress!!!! looking good man

79gmc5.3 · 04-02-2011, 12:05 PM

This is why I swapped to the 6.0L. If I do a 4" axle flip on the rear will it still tow my boat? I don't use the truck to haul heavy loads in the bed, but I still want to tow my boat.

Pop's C-10 · 04-02-2011, 12:13 PM

Helper bags will get you back up to towing height

**nlped** · 04-03-2011, 05:31 PM

My previous '86 LWB had a shackle and hanger (4" drop) on it and I towed my 19.5' Chapparal with no issue at all, but I tow the same boat now with my 2wd Blazer with a flip in the rear without issue either. You won't have a problem at all with a 4" drop.

79beater · 04-04-2011, 11:17 AM

Your truck is looking great! What did the rear end come out of? Do you know what model truck rear ends will fit our 79 GMCs?

79gmc5.3 · 04-04-2011, 06:21 PM

Quote:

Originally Posted by 79beater

Your truck is looking great! What did the rear end come out of? Do you know what model truck rear ends will fit our 79 GMCs?

This one is from a 77 Chevy Silverado SWB. It's not a Posi it is a limited slip

**nlped** · 04-04-2011, 05:03 PM

I know the rearend out from under a '73-'87 1/2 ton square fits without any modifications and the newer '88-'98 rearends will fit with minimal modification (read relocate the spring pads and the shock brackets)...I put the rearend out from under a '96 1500 in my last '87 GMC 2wd.

daytonagp4 · 04-07-2011, 11:56 PM

Truck looks great!!! Just read whole thread.....wow....gives me more inspiration!!! I am getting close but this engine stuff has got me baffled. lol I have a friend supposed to be helping but he's hard to get ahold of. Anyway nice truck!!!

79GMCHeavyHalf · 11-14-2014, 08:59 PM

i love this build. i have a 79 the same color scheme and i have plans to restore it and put a 383 stroker in it or the same setup as you have.

Tusky · 04-14-2015, 10:46 AM

I'm new here. I been looking this thread and I love the truck. I know the thread was last year but I want to know how this truck would tow my Camaro on a open trailer ?
Thanks for the help.

03-30-2011, 07:49 PM	#1
79gmc5.3 6.0L power......... Join Date: Dec 2009 Location: Acworth GA Posts: 292	Re: 79 GMC Sierra LWB 6.0L swap Hey Guys: Installed a front sway bar yesterday, Man what difference. Bought a 12 bolt posi with 373 gears today, got a rear disc conversion kit from CPP will start that this weekend also looking to do a 3/4 drop with 18" wheels soon. If any of you have pics of LWB with a 3/4 drop please post pics so I can get an idea of what mine might look like. Thanks Attached Images __________________ What ever the mind of man can conceive......... he can achieve! My built thread http://67-72chevytrucks.com/vboard/s...d.php?t=375914 1979 GMC Sierra 6.0 L 4L60E 1995 Mustang GT 347

03-31-2011, 12:45 AM	#2
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: 79 GMC Sierra LWB 6.0L swap happy to see someones making some progress!!!! looking good man __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

04-02-2011, 12:05 PM	#3
79gmc5.3 6.0L power......... Join Date: Dec 2009 Location: Acworth GA Posts: 292	Re: 79 GMC Sierra LWB 6.0L swap This is why I swapped to the 6.0L. If I do a 4" axle flip on the rear will it still tow my boat? I don't use the truck to haul heavy loads in the bed, but I still want to tow my boat. Attached Images __________________ What ever the mind of man can conceive......... he can achieve! My built thread http://67-72chevytrucks.com/vboard/s...d.php?t=375914 1979 GMC Sierra 6.0 L 4L60E 1995 Mustang GT 347

04-02-2011, 12:13 PM	#4
Pop's C-10 Registered User Join Date: Jul 2010 Location: memphis Posts: 2,537	Re: 79 GMC Sierra LWB 6.0L swap Helper bags will get you back up to towing height

04-03-2011, 05:31 PM	#5
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: 79 GMC Sierra LWB 6.0L swap My previous '86 LWB had a shackle and hanger (4" drop) on it and I towed my 19.5' Chapparal with no issue at all, but I tow the same boat now with my 2wd Blazer with a flip in the rear without issue either. You won't have a problem at all with a 4" drop. __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

04-04-2011, 11:17 AM	#6
79beater Registered User Join Date: Nov 2010 Location: memphis, TN Posts: 33	Re: 79 GMC Sierra LWB 6.0L swap Your truck is looking great! What did the rear end come out of? Do you know what model truck rear ends will fit our 79 GMCs? __________________ Arron 79 GMC LWB, 350 Vortec "stolen" 2001 Chevrolet Suburban

04-04-2011, 05:03 PM	#8
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: 79 GMC Sierra LWB 6.0L swap I know the rearend out from under a '73-'87 1/2 ton square fits without any modifications and the newer '88-'98 rearends will fit with minimal modification (read relocate the spring pads and the shock brackets)...I put the rearend out from under a '96 1500 in my last '87 GMC 2wd. __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

04-07-2011, 11:56 PM	#9
daytonagp4 Registered User Join Date: Dec 2010 Location: New Haven, IN Posts: 171	Re: 79 GMC Sierra LWB 6.0L swap Truck looks great!!! Just read whole thread.....wow....gives me more inspiration!!! I am getting close but this engine stuff has got me baffled. lol I have a friend supposed to be helping but he's hard to get ahold of. Anyway nice truck!!!

11-14-2014, 08:59 PM	#10
79GMCHeavyHalf Registered User Join Date: Sep 2014 Location: Pincher Creek, AB, Canada Posts: 1	Re: 79 GMC Sierra LWB 6.0L swap i love this build. i have a 79 the same color scheme and i have plans to restore it and put a 383 stroker in it or the same setup as you have.

04-14-2015, 10:46 AM	#11
Tusky Registered User Join Date: Apr 2015 Location: Mississippi Posts: 71	Re: 79 GMC Sierra LWB 6.0L swap I'm new here. I been looking this thread and I love the truck. I know the thread was last year but I want to know how this truck would tow my Camaro on a open trailer ? Thanks for the help.



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