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post #1 of (permalink) Old 10-28-2002, 09:11 AM Thread Starter
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Help Identifying parts on \'80 truck

I'm thinking about buying a truck near me and am wanting some help figuring out what tranny/tcase and front and rear end it has. I've tried to search and find out what was offered in 80 but haven't had any luck so I figured you all could help me out. The truck is a 1980 Model Longbed Pickup with a 350 and an automatic transmission. If you have any idea what this truck might have let me know. I really don't want to drive 45 min's to see it doesn't have what I need. Thanks, Andy
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post #2 of (permalink) Old 10-28-2002, 09:47 AM Thread Starter
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Re: Help Identifying parts on \'80 truck

I just talked to the guy selling the truck and he says he thinks the tranny is a 350. He also said the TCase has Part time 4wd so it shouldn't be the 203. I am assuming it is a 208 or 205. Can somebody let me know what Chevy put in these trucks? Thanks, Andy
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post #3 of (permalink) Old 10-28-2002, 09:53 AM
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Re: Help Identifying parts on \'80 truck

is it a 1/2 ton or 3/4 or 1 ton truck? If it has OD it is a 700R4 or otherwise probably a TH350 tranny. Right about that year is when they went from teh NP205 to teh NP208 T-case between teh D44/12 bolt combo to teh 10 bolts combo if 1/2 ton. If 3/4 ton or greater it will have a 14FF out back probably
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post #4 of (permalink) Old 10-28-2002, 09:58 AM
 
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Re: Help Identifying parts on \'80 truck

<font color="green"> All 1980 model Chevy and GMC trucks have the 205 case. It is the only year that had the 205 attached to all of the trannys. That being said, it's not a sure thing that they haven't been swapped at some time. The easiest way to tell if a case is a 205 is by the small cover on the rear of the case that is held on with 3 bolts. It is pretty much right in the middle of the rear of the case. Axles are likely a 10 bolt in front and a 12 bolt in the rear, but they could be both 10 bolts, or a D44/12 bolt. 1980 is right in the middle of the range of years during which they were changing from the 44/12 to the 10/10.</font color>
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post #5 of (permalink) Old 10-28-2002, 10:00 AM
 
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Re: Help Identifying parts on \'80 truck

Is it a 1/2 ton, 3/4 ton or what? The T-Case is a NP-205, supposedly all GM 4x4s that year got the 205 regardless of tranny. 1/2 ton, axles will most likely be 10 bolts, there is a slim chance you would have D44 and 12 bolt. 3/4 ton would be 10bolt (or D44 front) and 14 bolt rear. The reason for possible axle choices is that 1978 was the last year for the D44 and 12 bolt axles but they were still put in as quantity on hand was being used up.
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post #6 of (permalink) Old 10-28-2002, 10:52 AM Thread Starter
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Re: Help Identifying parts on \'80 truck

I'm pretty sure it's a half ton. I forgot to ask the guy when I talked to him. I am planning on swapping the drivetrain into a Jeep. The guy wants $1500 for the truck but said he could take less. The truck has 44" tires so I'm assuming the front and rear end have a decent gearing to be able to pull the tires. It also comes with a set of 35" tires that I'll be using. He says the truck runs good and doesn't have any problems. It sounds like a good deal to me, but I'm no expert on Chevy stuff. How does it sound to everybody else? I appreciate the help. Thanks, Andy
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post #7 of (permalink) Old 10-28-2002, 10:59 AM
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Re: Help Identifying parts on \'80 truck

If the tires have good tread left on them then it is a good price cause the tires would be worth it. If it is a long bed it could be a 3/4 to 1 ton. Hopefully it is a 1 ton with that big of tires. If the truck has been geared for the 44's then have fun with the 35's on there.

Laters, Ryan
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post #8 of (permalink) Old 10-28-2002, 12:17 PM
 
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Re: Help Identifying parts on \'80 truck

<font color="green"> Ouch, if it still has the half ton or 3/4 ton stuff, the front axle has been seriously overworked with 44s. Make sure you do a major inspection on it before you run it. </font color>
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post #9 of (permalink) Old 10-30-2002, 06:31 AM
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Re: Help Identifying parts on \'80 truck

If it has been running 44s on 1/2 ton axles, you will most likely have a lot of $$ worth of parts to replace on the axles, if they are any good at all.
post #10 of (permalink) Old 10-30-2002, 02:34 PM
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Re: Help Identifying parts on \'80 truck

The 1980's came with a 205 transfer case behind the automatics. I have one from a 350 and a 400 and both have slip yokes for the rear driveshaft. These can easily be swapped for a better fixed yoke. The front axle is probably a 10 bolt but could possibley be a left over dana 44. The rear is either a 12 bolt, 10 bolt of 14 bolt FF. These years they were switching to 10 bolts but had some left over axles used in different vehicles.
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