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Old 05-30-2018, 08:54 AM   #1
brown7373
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Tune-up Decals

My 72 350 4bbl has an LL code on the tune-up decal (upper left corner), and my decal I believe is original. I find nothing in the Service or Assembly Manuals on the difference between the LL and LJ codes listed for the decals. In fact, I see nothing at all concerning ANY codes. Both say 1972 350-4 AT/MT US. Anyone know where those Tune-up Codes are listed?
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Old 05-30-2018, 11:15 AM   #2
Grumpy old man
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Re: Tune-up Decals

Send an email to Drdecal I'm sure they can give you all the info you need .

https://www.drdecal.com/contact-us/
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Old 06-01-2018, 02:52 AM   #3
mike16
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Re: Tune-up Decals

thanks for that grump!
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Old 06-01-2018, 10:13 AM   #4
brown7373
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Re: Tune-up Decals

I can buy either the LL or the LJ. My truck has what I believe is original LL decal. My question is what is the difference between an LL truck engine and an LJ truck engine. I found nothing in either manual that talks about those letter designations, although every emissions decal has a 2 letter designation in the upper left corner. 71s have AN, AO, AP etc. but each has a different engine description. In the Truck Shop catalog (Jan 2018, page 159), there are 2 identical engine descriptions (72 350-4 AT/MT US) and 2 different decals.
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Old 06-01-2018, 05:51 PM   #5
Mikes68C10
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Re: Tune-up Decals

Quote:
Originally Posted by brown7373 View Post
I can buy either the LL or the LJ. My truck has what I believe is original LL decal. My question is what is the difference between an LL truck engine and an LJ truck engine. I found nothing in either manual that talks about those letter designations, although every emissions decal has a 2 letter designation in the upper left corner. 71s have AN, AO, AP etc. but each has a different engine description. In the Truck Shop catalog (Jan 2018, page 159), there are 2 identical engine descriptions (72 350-4 AT/MT US) and 2 different decals.
Wonder if it might have to due with emissions equipment. That might explain the differences... (says the newbie!)
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1968 C10 LWB Fleet-Wood, 2-WD, 327, 4-Bbl, Auto, 12-Bolt, Bone Stock. >POOF!< Sold 9/8/2018. New owner is local to Waynesboro PA and will take excellent care of her. He also owns a 69 Z28 SS Option car.
1998 Camaro SS, LS1, A4, 3.42. Free Tune - Stock 13.08 @ 106.55 >Lightening Strikes Again!< Sold 9/9/2018 she too will be well cared for as 1 of 45 produced in blue, with Auto and no T-roof.

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Old 06-02-2018, 09:13 AM   #6
Bigdav160
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Re: Tune-up Decals

My '72 350/TH350 is an LM (California)
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