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73-87 Chevy _ GMC Trucks => Members Rides => Topic started by: joeyputt on November 19, 2013, 07:56:41 pm
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Hello everyone, I have been wanting to build a new truck for the shop and personal use for a while and a very close friend of mine decided he was going to let one of their family trucks go that I have always loved so I did some trading with him and it is now mine! I have owned several chevy trucks in the past and I am very happy that I will be able to build and keep this one!
The truck has been sitting for a few years and a engine and transmission did not come with it however I had a nice 1990 350 engine with the serpentine belt system that I just set in the truck and I am almost finished converting it from TBI to a carburetor. I modified and installed a factory aluminum intake manifold from a 1981 Corvette on the engine and rebuilt a nice Quadrajet to go with it. I also installed an HEI distributor for the ignition.
The transmission is a 700R4 and I had to move the crossmember so it is just sitting in place until I drill a few new holes to mount it. I was able to use the factory front driveshaft from the 1990 Suburban that the engine and this transmission came out of and the rear driveshaft that came with the truck to get the length I needed between the transmission and rear end. I am sure I will have some questions about the 700R4 transmission as I have had TH350 transmissions in most of my other vintage Chevrolet vehicles.
My friend said that he converted the front end to one ton springs and the rear end is a 14 bolt 10.5 one ton rear end I believe and he says it has 4.10 gears however I will confirm the gear ratio when I check the rear end.
I will take some photos of the truck and the work that I am doing to share as I have the time to work on her!
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Here are a couple photos I took yesterday afternoon so that I could look at them while researching information to try and identify the rear end, I believe it is a 14 bolt 10.5 one ton rear end is that correct?
(http://i1016.photobucket.com/albums/af284/joeyputt/74%20GMC/004_zpsfc7c5092.jpg) (http://s1016.photobucket.com/user/joeyputt/media/74%20GMC/004_zpsfc7c5092.jpg.html)
(http://i1016.photobucket.com/albums/af284/joeyputt/74%20GMC/005_zpsbdf08546.jpg) (http://s1016.photobucket.com/user/joeyputt/media/74%20GMC/005_zpsbdf08546.jpg.html)
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Definitely a 14 bolt. What do the ends of the axle look like?
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I have not taken the back wheels off to look yet however I may tomorrow so I can take some photos and add them when I do. I am going to clean this rear end soon however do you happen to know where the numbers may be located on it?
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capt just curious but have you seen a 10.5" 14 (the one thats pointy, like pictured) ever be a sf?
(http://www.4wheelparts.com/aux_incl/images.ashx?i=RCH_1771.jpg&partNo=G%2f2&w=400&h=400)
or could we correspond the 9.5" 14 bolt for sf?(http://www.4wheelparts.com/aux_incl/images.ashx?i=6070B.Jpg&partNo=ORU&w=400&h=400)
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That's a heck of a mud bee "hive" on the diff cover....pretty crazy!!!
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Captkaos I removed one of the rear wheels this afternoon so that I could take a photo of the end of the axle for you, please share any information about this rear end that you may know as this is the first 14 bolt that I have had.
Yes blazing816 we live out in the county in Alabama and these dirt dobbers also like to fill everything with dirt, they fill atv and motorcycle air intake tubes and exhaust pipes so that the engines will not run correctly and they also love to fill threaded holes in intakes, cylinder heads, etc.!
You all will have to excuse how dirty the truck is as it has been driven on dirt roads here for years and she has been resting for the last three years however I am going to start cleaning and painting everything as soon as I finish getting her running. My good friend that I just got the truck from had put new aluminum rims on the truck right before they parked it and he let me have them with the truck as well however they will need polishing and new tires.
(http://i1016.photobucket.com/albums/af284/joeyputt/74%20GMC/001_zpsd5e2432b.jpg) (http://s1016.photobucket.com/user/joeyputt/media/74%20GMC/001_zpsd5e2432b.jpg.html)
(http://i1016.photobucket.com/albums/af284/joeyputt/74%20GMC/002_zpsfdf553e1.jpg) (http://s1016.photobucket.com/user/joeyputt/media/74%20GMC/002_zpsfdf553e1.jpg.html)
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IMPO, Good trade!! I am curious what the rest of the truck looks like so waiting of pics and good luck with getting her up and running. Not sure how much you've explored the site but there isn't much if anything that hasn't been covered here or that someone here hasn't/can't figure out on these old trucks.
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Missed the cover pic the other day. That is a full float 14 bolt.
Look at my R10 turbo truck, the dirt in my filter was most likely from dirt dobbers when I was bending fuel lines.
Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz
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Thank You frotosride! I have owned a couple of similar trucks in the past however I have always loved this truck and I could not believe it when my friend said he was going to let her go so I had to have her! I got her from one of my best friends too and he also gave me a lot of parts like new doors, a nice set of used front fenders that I am gong to put on as the ones that are on the truck now have been lightly modified for larger tire clearance, another dash pad, and an extra grille, etc.
I had planned on trying to take a few photos of the truck today so that I could post them this evening however my wife and I spent the day away from the shop so I only had enough time to take the rear wheel off to get the axle photo when we got back so I will try to take some photos of the body tomorrow and post them for you.
I should hopefully have the engine running very soon as I only need to run a few wires to test start her and then I can start working on everything else.
This forum is definitely a wealth of knowledge and I am proud to be a member here, I have been reading about the 700R4 converter this evening and I need to study more about connecting the tv cable to the Quadrajet carburetor and setting it still however I am sure there is a lot of information here about that as well!
Thank You for confirming the rear end model Captkaos, I added a photo of the axle end that you asked about for you as well. I was just looking at your turbo truck sitting on the dyno a little while ago, man that is going to be a nice truck! Dirt dobbers try to get into everything here at the shop!
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I also meant to ask about u-joints for these rear ends, I had a hard time trying to find one to fit where the rear drive shaft fits into the rear end as the cups in the drive shaft and the cups for the rear end are different sizes and the set that goes in the drive shaft are closer together than those that go in the rear end. I found one that had both of the correct size caps and it fit the drive shaft however when I set the u-joint in the rear end I found that it could be a little wider. When we tried to find the u-joint for this truck at the parts store all of the part numbers we checked had even sized and spaced caps so we had to try and match this one to the measurements I needed. Is there a certain u-joint that most of you are using with this rear end? I am planning on building new side spacers that will be welded to the straps if we use this u-joint that I have now as it is the only one I have been able to find with the correct size caps.
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This has nothing to do with the truck pat of the thread title but rather the two wheeled part of the title. I assume your normal line of work is motorcycle repair? Customs? etc.. When I'm done with the truck I'm turning my attention to my daily driver M109r and seriously considering forced induction... Got a website for the shop?
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Yes I have a website, is it cool to post it here? I am a new member and do not want people to think I joined just to advertise. I included that information in the title as this will be my new shop truck and it will get lettered with the shops logo, website, etc. after we paint it.
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Just PM me the link then you're not advertising or violating any of the 20pages of guide lines.
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20 pages? There is a lot of liability from running a forum. I don't think there are 20 pages, but they are there to protect us all.
Joey, use your best judgement, if you wouldn't want me doing it on your site use the same rules here. PM would be best...
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CAP, I didn't mean for that to sound as a bad thing. I fully understand the protection they provide and I would hate to be bombarded by scammers and ridiculous popups with every click. So thank you and Come the new year (after deployment) I fully intend to become a site supporter. Seriously thank you for all you put into this site for us!!
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Thank You for the clarification Captkaos, as I am new here I was not sure what the rules were about members sharing information however I did PM the information before you posted that out of respect to the site. I did not join here to advertise at all, I love vintage Chevy and GMC trucks and this was the nicest site I found when I was looking for other people who have the same passion for them so thank you for allowing me to be a member here! I love that this site is family oriented and has rules to keep it a nice community and I try to do the same thing with my internet sites. We do however allow members to share information about there businesses because we all try to take care of each other and I even have a Friends page on my main site where I post links to some of our friends and there is a link to one of the largest motorcycles communiy forums on their as well where we share a lot of builds and we do not charge for the links, like I said though I had not planned on posting any of my shops information frotosride asked so I did not know if it was cool to post it as we do not do any truck work and we do not sell truck parts so there would not be any competition anyway.
As for the truck I have not had a lot of time to work on it as I have been very busy here at the shop however we did run a couple temporary wires to the HEI and starter yesterday so that we could test start the engine and she sounds really good so I am getting ready to start doing a lot of the wiring. I believe I am going to build a custom gauge panel as I want to run a race style dash with toggle switches so when I start building it I will post some new photos.
I have been researching some of the information on the truck and the parts I am using, the cab was built in St. Louis Missouri and the engine is a 90 model 350 with 1.94 Intake valve heads. I also found the numbers on the transmission and it is a 90 model 700R4 which from the information I found here on the site should be the improved transmission with the better pump, etc. compared to the 80's models so that is good news and I am currently trying to decide how I want to connect the tv cable and wire the converter.
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There are several different ways to wire the convertor ( I assume you are talking about lock up because that's all there is to wire) If you have a good memory a simple toggle switch will work great. However if you can't remember to turn it off when you slow or stop it can damage the transmission. If you want full brainless operation there are a few kits out there that can make it easy or you can piece the kit yourself with as little as a vacuum switch and some solder and a little wire. I can post a simple diagram if you want. Oh if you go the kits they will run about$100 and most of them include a 4th gear pressure switch which you won't need since your's is a post '86 model.
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Yes I am talking about wiring the converter, we live out in the country and the truck will not see a lot of highway service so I will most likely run a toggle for the converter as I like the idea of having a manual control however I would love to see your diagram for the vacuum system as well if you do not mind posting it! I am planning on dropping the pan to check the filter and I have seen that you can run a toggle to the wiring directly to the solenoid however I have also read that other people are wiring directly to the plug on the outside of the transmission, do you know if it is possible to wire to the external plug on a 90 model transmission or is it best to wire to the solenoid directly?
I noticed today that my truck looks just like the one in your profile photo, what year is yours?
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As far as the u-joint is concerned if the rearend was swapped into the truck, a conversion joint was likely used. Probably a 1330 to 1350 conversion joint. The 14 bolt should be a 1350 joint. The driveshaft was probably a 1330 joint. You can get these joints at Napa around me, I would imagine most parts sources can get them.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
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Thank You for the u joint information and part numbers my friend, I was able to find a u joint with the correct sized caps however the larger half that fits into the rear end needs to be a little wider to self center so I will check the part numbers you gave me to see if they are wider than what I have and if they are the same I may just build some custom caps with side plates. When I first started looking for the rear u joint and we checked the part numbers for a one ton truck the u joints all had the same size caps for the drive shaft and rear end, do factory one ton trucks with 14 bolt rear ends have a different rear drive shaft?
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The caps are the same size, but the width is different. The 1350 joint is slightly wider than the 1330 but the caps are the same.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
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I'm trying to find my diagram but for now this should help you understand the wiring and maybe even do it without the diagram.
The purple wire (terminal A) is the +12 volt supply to the system. The blue, or in some applications dark green, wire (terminal B) is connected to the fourth gear (overdrive) switch in the valve body. This normally closed switch opens whenever the transmission shifts into fourth gear; this informs the ECM that the transmission is operating in the overdrive mode. The tan wire with a black tracer stripe (terminal D) is the ground wire for the TCC solenoid. In the original factory installation this wire is connected to the ECM and when all preprogrammed requirements for TCC operation are met, the ECM grounds this connection to complete the circuit and activate the TCC solenoid in the transmissions valve body which then hydraulically actuates the clutch in the torque converter. terminal C remains unused in this four connector plug. For our rewiring purposes only the purple wire (terminal A) will be used to provide a +12 volt supply to the TCC solenoid.
1.After removing the transmission pan, disconnect, remove and discard the wire which runs from the fourth gear switch to the 4-pin connector in the transmission case.
Grounding circuit...
2.Remove the fourth gear switch (normally closed) and replace it with GM #8627332 or Standard Ignition Part #PS-131 (normally open). In order to gain access to the fourth gear switch to remove it with a socket-wrench, it will be necessary to remove the 1-2 Accumulator housing which is attached to the transmission case with 3 metric bolts with a 10MM hex-head.
Be careful not to damage the gasket!
3.Remove the TCC solenoid ground wire (Black) from the 4-pin wiring connector and connect it to the new switch . If your transmission has a 4-3 downshift switch in the +12V supply wire (Tan) side of the circuit, as most do, retain it.
4.The fourth gear switch (single terminal) is the one on the far right (facing forward) of the rear of the valve body and the 4-3 downshift switch (two terminal) is the unit directly inboard of the fourth gear switch. Rewired in this manner, the TCC will operate only in fourth gear (OD) and will stay locked up whenever overdrive is engaged. Some 700s other than the Corvette, Firebird, or Camaro units use a fourth gear switch or a third gear switch which is normally open and can be used as is. If yours has a normally open third gear switch, it can be moved to the fourth gear port and the third gear port plugged with a 1/8" pipe plug.
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Simplest and safest way to wire the tcc without to many complications
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I just realized that I have too many pics on this computer
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Small world, my man. Run into the motorcycle brethren everywhere these days.
Now, let's see the entire truck!