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01-13-2014, 02:15 PM
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#1 |
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Registered User
Join Date: Jun 2013
Location: Marilla, NY
Posts: 112
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Towing capacity
Whats the towing capacity for a 78 k10 with a 400 sbc? Just curious
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-1978  K10 Scottsdale LWB400 SBC 4 spd muncie SM465 ("heavy chevy") -2002 Toyota Celica GT 5spd (gas saving daily driver) -1969 Pontiac Firebird (post-college project car) |
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01-13-2014, 03:15 PM
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#2 |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,228
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Re: Towing capacity
Depends on the axle ratio:
3.07 = 8500 GCW 3.40 = 9500 GCW 3.73 = 10500 GCW (Gross Combined Weight). K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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01-15-2014, 06:38 PM
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#3 |
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Registered User
Join Date: Jun 2013
Location: Marilla, NY
Posts: 112
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Re: Towing capacity
no clue what my gear ratio is, all ive been told is that its the original one from 78. Is there a way to tell from looking at the diff case?
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-1978 K10 Scottsdale LWB400 SBC 4 spd muncie SM465 ("heavy chevy") -2002 Toyota Celica GT 5spd (gas saving daily driver) -1969 Pontiac Firebird (post-college project car) |
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01-16-2014, 08:37 AM
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#4 |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,228
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Re: Towing capacity
Only if you know all the axle part number broadcast codes. Do you still have the SPID label? It should show an axle ratio option code (GQ1-base, or HE4, GT4).
Easiest is to jack it up and spin the wheels and count how many times the driveshaft goes around. Most exact is to pull the rear diff cover and count teeth. Probably needs the fluid changed anyway and this would be a good time to do it. K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ Last edited by Keith Seymore; 01-16-2014 at 08:46 AM. |
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01-22-2014, 09:41 AM
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#5 |
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Registered User
Join Date: Jun 2013
Location: Marilla, NY
Posts: 112
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Re: Towing capacity
ill probably do that in the spring, both my diffs look like theyre leaking a little bit so I want to change the the gaskets before another season of driving, especially with the chance of me getting a job in colorado for the summer, and needing to drive over 1500 miles out there
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-1978 K10 Scottsdale LWB400 SBC 4 spd muncie SM465 ("heavy chevy") -2002 Toyota Celica GT 5spd (gas saving daily driver) -1969 Pontiac Firebird (post-college project car) |
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01-22-2014, 01:34 PM
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#6 |
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Registered User
Join Date: Aug 2012
Location: Atlanta, GA
Posts: 124
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Re: Towing capacity
Pulling and stopping are two very different things. I would make sure you have a trailer with brakes and a brake controller.
-D
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'86 Chevy K10 SWB Custom Deluxe 4x4 '94 Chevy Corvette '07 Ford Mustang '08 Lexus LS 460 |
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