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Author Topic: 87 4wd info  (Read 9902 times)

Offline sleeperrbu

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87 4wd info
« on: December 17, 2008, 09:21:26 pm »
Hi,
   I bought a 87 1/2 ton 4wd long bed few moths ago ($500 ;D) they guy blew a head gaskit and then let it set for 6 months with water in the cylinders, rusted bad enough i had to bore it .40 over to clean up the pitting, seems how i am rebuilding the engine i went with flat top pistons and better cam I'm also swapping out the tbi to a holly 650 spread bore mech secondary.  the truck has a 350/ granny 4 not sure what T case these trucks came with (208?) it has 4 shocks on the front dose this mean it has a heavy duty suspension? or were they all set up like this. i plan use the truck to pull my horse trailer with so I'm thinking nothing bigger than a 4 in lift,  lock rite in the rear (8.5" 10bolt) i was wondering if you can put a lock rite in the front diff (Dana 44?)

i always hear the 205s are strong but i don't know anything about 208s are they any good? i only pull about 4000-5000lbs

i also want to use 33 12.50s will a 4" lift work? i assume that the diffs won't have any problems with this small of a tire

thanx
-Asa
« Last Edit: December 17, 2008, 09:30:18 pm by sleeperrbu »
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Offline VileZambonie

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Re: 87 4wd info
« Reply #1 on: December 18, 2008, 10:23:45 am »
The 208 will work fine.
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Offline CruzinHigh

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Re: 87 4wd info
« Reply #2 on: December 23, 2008, 09:27:06 am »
Quote
the truck has a 350/ granny 4 not sure what T case these trucks came with (208?)

If it is factory, for an 87 it should be a 208 T case.  So with the granny 4 low I assume you've got a manual transmission with it?  If so, the SM465 Muncie is bulletproof.  Makes for a great towing truck. 

Quote
i also want to use 33 12.50s will a 4" lift work? i assume that the diffs won't have any problems with this small of a tire

I have 33 12.50s on my truck with no lift!  But it rubs if I lock the wheel all the way in one direction on the front right fender trim (juuuust barely).  My diffs have been just fine for 10 years and about 50k miles.

Keep us posted on your project, post some pics!   ;)
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Mike Carter
1986 Chevy K-10 4x4

8" lift project on the way soon!

Offline Captkaos

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Re: 87 4wd info
« Reply #3 on: December 24, 2008, 10:50:31 am »
If this is a driver, you don't want a locker in the front.
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Offline cracker0169

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Re: 87 4wd info
« Reply #4 on: December 24, 2008, 02:48:39 pm »
And you should have a 10 bolt up front as well, not a Dana 44.  Your axles will hold the 33's fine.  Also, if you have lockings hubs on the front axle, I dont see what it would hurt running a lock right. If it binds up too much, only lock in one hub...
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1981 K10, 350 - SM465 - NP205 sittin' on 37's
1983 C10, 305HO - TH400

Offline sleeperrbu

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Re: 87 4wd info
« Reply #5 on: December 31, 2008, 06:59:07 am »
thanks for all the info, my girlfriend broke my digital camera so i got to figure out how to down load some pics from my phone

-Asa
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Offline bigblue09

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Re: 87 4wd info
« Reply #6 on: December 31, 2008, 10:51:04 am »
you can email them to yourself and save them to your computer then just upload them on like photobucket or something.
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'87 Silverado EFI 305

Offline sleeperrbu

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Re: 87 4wd info
« Reply #7 on: January 01, 2009, 08:26:51 pm »
Ok I think I got it figured out...
.40 flat tops


misc new parts


new stock heads


bare block




i'm gona build the new motor this week end

i'll try to get some truck pics up soon

« Last Edit: January 01, 2009, 08:29:44 pm by sleeperrbu »
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Offline sleeperrbu

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Re: 87 4wd info
« Reply #8 on: January 01, 2009, 08:37:43 pm »
Quote from: cracker0169 on December 24, 2008, 02:48:39 pm
And you should have a 10 bolt up front as well, not a Dana 44.  Your axles will hold the 33's fine.  Also, if you have lockings hubs on the front axle, I dont see what it would hurt running a lock right. If it binds up too much, only lock in one hub...

yes it dose, the old owner replaced the stock automatics with locking Warn hubs
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Offline sleeperrbu

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Re: 87 4wd info
« Reply #9 on: January 04, 2009, 11:55:08 am »
ok got some truck pics

not much, but for only $500 i think i do real good ;D







do these wheels look like 8"s?




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Offline sleeperrbu

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Re: 87 4wd info
« Reply #10 on: January 07, 2009, 09:55:28 pm »
put the engine together over the weekend and found something odd about my heads one uses self alighning rockers one head dosn't :-\





can you use self alighning rockers on both types of heads?
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Offline captain carnage

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Re: 87 4wd info
« Reply #11 on: January 11, 2009, 02:05:54 pm »
Yup those are 8 inch wheels, and thats quite a score for $500, sweet ride!
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Multiple chevys = neverending projects

Offline sleeperrbu

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Re: 87 4wd info
« Reply #12 on: January 12, 2009, 06:32:59 pm »
Quote from: captain carnage on January 11, 2009, 02:05:54 pm
Yup those are 8 inch wheels, and thats quite a score for $500, sweet ride!

cool, i thought they looked wide. i think i have changed my mind on the 33s, can you squeeze 35.12s on 8" wheels or do you have to use 10"?

thanx
-Asa
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Offline GP3624

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Re: 87 4wd info
« Reply #13 on: January 12, 2009, 07:22:52 pm »
$500.00 for that constitutes outright grand theft auto... ;D
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Offline murraygmc

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Re: 87 4wd info
« Reply #14 on: January 12, 2009, 07:26:07 pm »
no doubt i paid 1000 4 mine and it don't look half that good
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85 gmc high serria 4x4
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