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09-23-2010, 04:58 PM | #1 | |
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Re: The "In over my head" build thread
Quote:
I thought of going 454 but didn't want to deal with the firewall issues. |
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11-20-2010, 02:06 PM | #2 |
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Re: The "In over my head" build thread
Do you have part numbers for the front 8 lug conversion?
Did you get the parts from NAPA? |
11-22-2010, 12:42 AM | #3 | |
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Re: The "In over my head" build thread
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Update 11/21. Moving Along... Man this picture makes the axle look SUPER wide! Here is what you will need to convert over to 8 lug: All this can be found on a '77 Chevy 4x4 3/4 Ton (K20) - I went to Napa, Autozone, Kragen, used online vendors, and ebay/craigslist to find all these parts.
*See http://67-72chevytrucks.com/vboard/s...=335976&page=2 for pics and torque specs. **When I bought the wheel bearings they came with wheel/Hub seals. Turns out they didn't fit because apparently there were two different styles of hub and hub seal in '77 (early and late design). If you search Napa's website for "Wheel Seal" for '77 K20 there will be two that come up - I needed the one without the flange. Last edited by SeventyOne; 11-22-2010 at 12:45 AM. |
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01-25-2011, 01:33 AM | #4 | |
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Re: The "In over my head" build thread
Quote:
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72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com |
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01-25-2011, 06:21 PM | #5 | |
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Re: The "In over my head" build thread
Quote:
'77 K20 Rotor only = NB4885677 Hub only = NB4886287 Hub and Rotor assembly = NB4886286 Mine came with the bearing races installed also. Posted via Mobile Device |
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01-26-2011, 12:02 AM | #6 |
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Re: The "In over my head" build thread
Ahh...I see now. I had been searching the websites for a 1973 - Chevy - k20 - "hub" (small bearing) and nothing came up other than bearings and seals. I also searched 1976 randomly just because I have the 76 GMC that's in my signature (also small bearing). If I would have just tried a search for my 78 I would have seen it. Apparently a big bearing is avaialbe but small isn't. I guess I will have to change my spindles as well if I go the new parts route. Thanks for straightening me out.
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72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com |
01-26-2011, 05:38 PM | #7 |
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Re: The "In over my head" build thread
From what I remember there is a way to run 8 lug on the smaller spindles if you buy different bearings. I don't know the specifics though. I went with the big bearing spindles because they are stronger.
Also, if it matters, I *think* '76 had a changeover partway through the year to the big bearing stuff. Posted via Mobile Device |
01-27-2011, 12:04 AM | #8 | |
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Re: The "In over my head" build thread
Quote:
I was actually aware (surprisingly) of the mid 76 change. I had to get some tie rods or ball joints or something years ago for the GMC and I remember it being a question. Turns out mine is an early version. Thanks again for all your help!
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72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com |
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02-02-2011, 05:18 PM | #9 |
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Re: The "In over my head" build thread
Frame is basically ready to go out to the powdercoater but I have some concerns before I send it.
I will be running a 700r4 and will be moving the engine forward 1 7/8" to accommodate the extra length. I will also be using the DIY crossmember. Should I find the exact location of the crossmember before I send it out for coating? Basically mock up the engine and tranny then tear it down once I know the new location? Or just measure and drill then send out the frame? -Reason I ask is because yesterday I attempted to mock up the drivetrain and ran into issues across the board: frame seemed to have "shrunk" slightly (frame rails are closer together than before) since the tranny x-member holes are tough to get aligned. Then, the 700r4 seemed to mount differently to the crossmember compared to the Th350 - the mounting holes on the end of the tranny seem rather small in diameter. Maybe I need 700r4 specific mounts/bolts? Also while mocking up the DIY engine crossmember I tried putting the poly bushings into the tube and they are extremely tight and the bushing won't seat fully in the tube - to make matters worse I can't get the bushing out now. So I can't mock up the engine, and later I need to remove it so I can get it coated but can't. Awesome. At this point I stopped from severe frustration and daylight running out... Maybe I ran into all these problems because I am trying to reassemble some 40 year old parts with some new and some aftermarket parts? If anyone has some words of wisdom here I could really use a little advice from those that have been here before. I know there's a lot going on in this post but any help is appreciated. Last edited by SeventyOne; 02-02-2011 at 05:19 PM. |
02-02-2011, 08:55 PM | #10 |
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Re: The "In over my head" build thread
Ok so I solved part of issue - I completely forgot that the trans-to-tcase adapter is the part that actually bolts to the mounts on the trans x-member - I'll have to bolt that to the 700r4 first.
Now I just need to figure out why the DIY crossmember is not fitting right and try again with a mockup. Advice from my above post it still welcome : ) |
04-12-2011, 09:56 PM | #11 |
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Re: The "In over my head" build thread
Update: 4/12/11
Getting all my chassis junk picked up for powder coating tomorrow Frame Transmission Crossmember Transfer Case Torque Mount Core Support Bumper Brackets In other news I'm looking for a trans and engine builder. I think it will be a HUGE momentum and morale booster to get some CLEAN parts to work with and start assembling rather then disassembling. Pics to come when I get them back from the coater! |
05-07-2011, 01:22 AM | #12 |
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Re: The "In over my head" build thread
Update: 5/6/11
Got my junk back from the powder coater. Before: After: Started getting the suspension assembled. These are Alcan springs. 6" front lift and 2" rear lift + 4" ORD shackle flips w/ 4.5" DIY4X shackles. I hope when I get some weight on the springs the shackles get better angles. Front is negative and the rear is straight up and down... This thing is going to be huge... I didn't have enough daylight to get the rear together but soon enough! In other news: I should be getting a sick little rebuilt 700r4 and the engine for the build (specs to come) before Memorial day. My brother (there's a pic of him elsewhere in this thread) is on leave from the Marine Corps that weekend so I am hoping he will have time and can help me spin some wrenches on this thing! |
05-07-2011, 01:41 AM | #13 |
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Re: The "In over my head" build thread
Dang that frame came out clean!
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05-07-2011, 02:53 PM | #14 |
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Re: The "In over my head" build thread
I just read your build, looks good. On a side note about the lugs having a "loose" feeling, I wouldn't see any issue in running it like that since the friction between the rotor and wheel surface will negate any play in the stud, especially concerning the miniscule amount you mentioned. The stud doesn't actually hold the weight of the vehicle anyways, just the friction between the two surfaces BUT it looks like you found a good solution to your problem and i'm sure you won't have any issues. Look forward to reading about some more progress!
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05-09-2011, 01:01 AM | #15 |
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Re: The "In over my head" build thread
if you dont mind me asking how much did it cost to get the frame powder coated?
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05-09-2011, 01:14 AM | #16 |
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Re: The "In over my head" build thread
Frame alone would have been $600. Not bad in my opinion - the thing is spotless. I got all the brackets, crossmembers, core support, shackles and mics junk for a little more than $900.
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05-09-2011, 07:05 AM | #17 |
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Re: The "In over my head" build thread
how about a scissor jack and a 4x4??
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
05-09-2011, 06:45 PM | #18 |
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Re: The "In over my head" build thread
Ya maybe that could work...
Sorta like... [-X-] if the [ ]'s are the frame rails, the -'s are 4x4's and the x is the jack to spread... Now I gotta find a scissor jack - oh wait maybe my car has one. I'll update later... |
05-09-2011, 08:45 PM | #19 | |
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Re: The "In over my head" build thread
Quote:
[ X-]
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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06-26-2011, 12:46 PM | #20 |
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Re: The "In over my head" build thread
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05-13-2011, 10:48 AM | #21 |
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Re: The "In over my head" build thread
Let me know how the NP205 rebuild goes. I have been thinking about buying a rebuild kit and doing it myself, but I don't want to open it up and realize that I'm not sure how to put it back together. The dis-assembly always seems to be easier than the re-assembly.
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05-13-2011, 04:43 PM | #22 |
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Re: The "In over my head" build thread
This truck won't be built for hardcore wheeling so I didn't see the need for the shackles. Down the road when I swap to a D60 and do crossover steering I might...
There's a great write up I found regarding the NP205 rebuild. Step by step instructions with pics. I figure If I get lost I can refer to that and an exploded view diagram to get it back together. It's just gears, bearings, shafts, and seals right?? I'll post a link to it when I get it back together with some pics. |
05-13-2011, 05:19 PM | #23 |
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Re: The "In over my head" build thread
Nice build! Looking great!!!!
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05-15-2011, 01:32 AM | #24 |
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Re: The "In over my head" build thread
Update 5/14/11 - We're moving now!
Picked up my 700r4 from the trans builder this morning. Real good guy and super knowledgeable. He also hooked me up with a 5 pinion rear planetary gear set w/o charge! Can't wait to get this beast behind the engine! Here's all the internals of the NP205. I spent about 4 hours today going through the bags and cleaning parts - bolts, cover plates, bearing retainers, etc - to get them ready for the assembly. POR15's Marin Clean is AMAZING at getting 40year old dirty greasy sludgy crap off these parts. It did seem to tarnish the aluminum parts though - I'm not too worried becuase 1: their clean, and 2: it's a Tcase...who cares... This last shot shows the top of the case where the plugs and shift rail ball bearings sit. I wanted to show this because when I came to that part in the disassembly the top of the case had so much crap caked onto it I couldn't even find these holes! Nasty... Case should get fully cleaned and masked for paint tomorrow. Seals and new bearings should be coming soon from NorthWestFab. |
05-17-2011, 12:45 AM | #25 |
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Re: The "In over my head" build thread
Nothing much to add. Just boring stuff like painting the transfer case........oh and my engine will be delivered tomorrow....
Last edited by SeventyOne; 05-17-2011 at 12:46 AM. |
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