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Old 05-12-2018, 05:00 AM   #1
my kids toy
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New 71' 4x4 and need sugestions

Hi all.
This is my first post and I just picked up this 71' 4x4 for my 12 year old so we can get this baby up to par by the time she turns 16
The truck is fresh from puerto rico
I hope I did not pay too much for it, I paid $5000 with issues.
It has a inline 6 but they swapped out the 3 on the tree for a 4 on the floor so it is only 2 wheel drive for now and the transfer case was in the bed of the truck and during shipping off the island someone took the original trans and transfer case.
So I am in need of a v8 and a trans ( automatic preferred ) and a transfer case.

Question 1:
For starters I would like suggestions on what I should find for a motor and trans and transfer case to put in this.

Question 2:
it had originally a wood bed in it but it is gone and has a steel floor, I want to put the wood back in it, does the wood go over the steel flat floor or does that need to be removed , I am sure it does but just double checking.

Question 3:
It has manual steering so I need to swap that out to power steering, what should I get or look for.

Question 4 : were on line should I shop for parts, I want to swap out the steering column and I need a new gauge panel and a new grill.

I will definitely need lots more suggestions on were to go with this truck.

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Old 05-12-2018, 05:51 AM   #2
72 tigger
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Re: New 71' 4x4 and need sugestions

You can look on the parts board- if you become a member you could post a want to buy ad. Looks like a nice truck!
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Old 05-12-2018, 10:20 AM   #3
my kids toy
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Re: New 71' 4x4 and need sugestions

I am considering looking for a wrecked or rust bucket truck to get motor trans and transfer case out of and maybe get the power steering pump with it as well, in the short search I did it looks like I might need a NP 205 transfer case ? what trucks came with those or what years ?
I know I can find all this in searches but I have so much to search for being new to this style truck it would be helpful for some tips or pointers to help out.
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Old 05-12-2018, 10:31 AM   #4
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Re: New 71' 4x4 and need sugestions

I believe 69- 80 Chevy GMC used the NP205 Turbo 350 trans after that it was Turbo 400 for a few years, then at one point went to NP203 and overdrive trans. I could be incorrect.
Depends on gearing and tire size if you would need overdrive.I have a 70 with 373 gears and 33" tires so I am OK without overdrive.

Nice looking truck
Ron
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Old 05-12-2018, 10:35 AM   #5
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Re: New 71' 4x4 and need sugestions

Looks to be a good starting point. If the spid is there there you can see the options the truck had. The spid is location on the inside of the glove glovebox door.

Thanks
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1972 Custom Deluxe 20 4x4 burb
1971 GMC SWB CST 4x4
1972 GMC k20 4x4 (X- brush truck )
1971 Chevy CST Blazer 4x4
1971 Chevy C/10
1970 Cab Chassis C30 157"
1971 Cab Chassis Custom 30 Deluxe 157" 292/4spd ( Napco Replica )
1988 Chevy V30 4x4 wrecker challenger 4812
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Old 05-12-2018, 10:36 AM   #6
my kids toy
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Re: New 71' 4x4 and need sugestions

would a th400 tranny mated to a np205 transfercase from a 1985 1 ton fit right in ? I did find one of those for sale near me

I do not know what gearing I have yet, I will need to open it up and see unless it has a tag on it.

Also is this a c/10 truck or a K/10 ( it has custom 10 badge on it. )

Last edited by my kids toy; 05-12-2018 at 02:34 PM.
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Old 05-12-2018, 10:45 AM   #7
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Re: New 71' 4x4 and need sugestions

Quote:
Originally Posted by my kids toy View Post
would a th400 tranny mated to a np205 transfercase from a 1985 1 ton fit right in ? I did find one of those for sale near me

I do jot know what gearing I have yet, I will need to open it up and see unless it has a tag on it.

Also is this a c/10 truck or a K/10 ( it has custom 10 badge on it. )
Yes the Th400/205 combo will fit to any 250 or 292 inline 6 or the small blocks or big blocks.

C stands for 2wd
k stands for 4wd

To understand your vin you can look here.
http://67-72chevytrucks.com/vboard/s...&highlight=Vin

Thanks
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1972 Custom Deluxe 20 4x4 burb
1971 GMC SWB CST 4x4
1972 GMC k20 4x4 (X- brush truck )
1971 Chevy CST Blazer 4x4
1971 Chevy C/10
1970 Cab Chassis C30 157"
1971 Cab Chassis Custom 30 Deluxe 157" 292/4spd ( Napco Replica )
1988 Chevy V30 4x4 wrecker challenger 4812
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Old 05-12-2018, 11:01 AM   #8
71blksuper4x4
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Re: New 71' 4x4 and need sugestions

Any wood you get for the bed will have to be modified as your truck appears to be sitting on a blazer frame. You will have to cut the wood and strips down to fit your shortened bed.
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TREVOR
1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks)
1972 Jimmy (soon to be Hickey cloned)
1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track)
1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank
1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT)
http://67-72chevytrucks.com/vboard/s...d.php?t=624819
1989 V3500 Crew Cab (454tbi, NV4500, np205)
1970 Chevelle SS (LS5 454,th400,8track,buckets,tach)
:2004 Jeep Wrangler Rubicon (daily driver)

WTB: 1968-70 Cruise Control Lever
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Old 05-12-2018, 02:29 PM   #9
my kids toy
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Re: New 71' 4x4 and need sugestions

I am hoping it is the original frame, how long should the bed be ?
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Old 05-12-2018, 02:56 PM   #10
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Quote:
Originally Posted by my kids toy View Post
I am hoping it is the original frame, how long should the bed be ?
That is a super short bed! Looks like they cut the bed in front of the rear fender. Got to be careful driving something that short on slippery roads, my blazer loves swapping ends in the snow! Nice looking truck though!
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Old 05-12-2018, 04:15 PM   #11
CrewCab59
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Re: New 71' 4x4 and need sugestions

Quote:
Originally Posted by my kids toy View Post
I am hoping it is the original frame, how long should the bed be ?
69-72 K5 Blazer wheel base 104"
67-72 k10 1/2 ton wheel base 115"

73-91 k5 Blazer wheel base 106.5
73-91 k10 wheel base 117.5"

Go measure and let us know what you have.

Thanks
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1972 Custom Deluxe 20 4x4 burb
1971 GMC SWB CST 4x4
1972 GMC k20 4x4 (X- brush truck )
1971 Chevy CST Blazer 4x4
1971 Chevy C/10
1970 Cab Chassis C30 157"
1971 Cab Chassis Custom 30 Deluxe 157" 292/4spd ( Napco Replica )
1988 Chevy V30 4x4 wrecker challenger 4812
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Old 05-12-2018, 07:00 PM   #12
71blksuper4x4
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Re: New 71' 4x4 and need sugestions

Quote:
Originally Posted by my kids toy View Post
I am hoping it is the original frame, how long should the bed be ?
Definitely a blazer frame. Not sure if a newer model blazer or not.
__________________
TREVOR
1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks)
1972 Jimmy (soon to be Hickey cloned)
1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track)
1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank
1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT)
http://67-72chevytrucks.com/vboard/s...d.php?t=624819
1989 V3500 Crew Cab (454tbi, NV4500, np205)
1970 Chevelle SS (LS5 454,th400,8track,buckets,tach)
:2004 Jeep Wrangler Rubicon (daily driver)

WTB: 1968-70 Cruise Control Lever
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Old 05-12-2018, 11:31 PM   #13
Husker
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Re: New 71' 4x4 and need sugestions

Quote:
Originally Posted by 71blksuper4x4 View Post
Any wood you get for the bed will have to be modified as your truck appears to be sitting on a blazer frame. You will have to cut the wood and strips down to fit your shortened bed.
You for some reason I did not even notice that. There is an Orange one like that here in town.
Ron
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Old 05-13-2018, 01:00 AM   #14
cdub2010
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Re: New 71' 4x4 and need sugestions

I saw that one a while back on craigslist, looks good in pictures, but man that dudes story was out there, I had to stop reading as my head was hurting. Ihope its a legit title with matching cab vin. I thought he vin he listed was 2wd vin hopfully just a frame swap. Just about any chevy 4x4 drive train will fit, you'll just be chopping driveshafts with the blazer, or shorten frame, whatever it is. Good luck with the project, keep focused on your end goal and don't worry to much on cost, its much more fun that way.
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Old 05-13-2018, 04:38 AM   #15
my kids toy
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Re: New 71' 4x4 and need sugestions

Crew cab, thanks for those measurements.
and yes I did not know better and it is a matching vin cab and it is a ( C ) cab not a K but what is weird is it seems like a stock hole in the floor with the transfer case shifter tunnel plate, it does not appear to be a hack cut job.
Does the custom 10 badging have anything to do with what is going on ?
The truck after getting it home and looking at it closer really needs to be tore down and blasted and painted. I am wishing I would have just passed on it but my daughter likes it and thats what matters.

It looks like I have the 69-72 K5 Blazer wheel base 104"

Last edited by my kids toy; 05-13-2018 at 07:29 AM.
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Old 05-13-2018, 09:28 AM   #16
CrewCab59
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Re: New 71' 4x4 and need sugestions

Is the tunnel hump flat or does it have bolts all the way around? The Custom 10 just few more options than just the c/10 base model. They just put a 2wd cab onto the blazer frame.

You have few options now that you know it's on a blazer frame.

1. Leave it as is, Shorten a set of steps to fix the gap between fender and bedside.
2. Cut and add a section to the frame.
3. Do a frame swap.

Thanks
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1972 Custom Deluxe 20 4x4 burb
1971 GMC SWB CST 4x4
1972 GMC k20 4x4 (X- brush truck )
1971 Chevy CST Blazer 4x4
1971 Chevy C/10
1970 Cab Chassis C30 157"
1971 Cab Chassis Custom 30 Deluxe 157" 292/4spd ( Napco Replica )
1988 Chevy V30 4x4 wrecker challenger 4812
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Old 05-13-2018, 05:08 PM   #17
my kids toy
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Re: New 71' 4x4 and need sugestions



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Old 05-13-2018, 05:09 PM   #18
my kids toy
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Re: New 71' 4x4 and need sugestions

It looks like the bed is 11 inches shorter, I see somewhere were they sold replacement bed sides and they were 80.25 long and mine is 69.25 long
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Old 05-13-2018, 05:39 PM   #19
my kids toy
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Re: New 71' 4x4 and need sugestions

would a 700r4 trans and np208 work in this truck ? I found someone selling a motor trans and transfer case that is still in a 81 chevy
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