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All torque converters have an inherent loss because the output is not directly connected to the input. A “lock up” equipped converter can overcome this loss by “locking” or directly connecting the input to the output inside the converter. The lockup is activated and deactivated by a solenoid...

I strongly recommend that you buy the correct bracket for the carb that you will be running. If the geometry of the bracket is not correct the transmission will not function correctly and you will more than likely damage the transmission. That cable controls a lot of the functions of a 700r4...

On a 700R4 it is very important that the TV cable be connected to the carb using the correct adaptor and adjusted correctly. If that is not done correctly you WILL distroy the transmission within a few hundred miles. Don

Is your check engine light on, if not is it working? The light should come on momentarily when the truck is started. If the ECM has set trouble codes you need to correct those issues before doing anything else. IAC (idle air control) valve could be bad. Low fuel pressure causes all kind of...

Check the TV cable and make sure it is connected to the carburetor linkage. The TV cable could be broken, see if you can pull the cable out of the sheath. If all that looks ok, disconnect the cable from the carburetor linkage and exercise the plunger that’s connected to the other end of...

Go to the sponsor of this forum, Classic Parts, and look up a rear glass for a 78 truck and 81 through 87 trucks and see if it is the same part number. Don

It seems like the simple problems can sometimes be the most frustrating. I guess we have to experience a problem like this every once in a while to keep us from getting too cocky. Don

Glad to hear the strikers fixed your problem. I thought for sure the truck was painted before the strikers were installed, but I can’t argue with what you found. Hum…my wife keeps telling me that I’m wrong… maybe I should pay more attention to her………Nah. Don

Mrsalt, I don’t remember the size for sure and I’m in Ohio doing some work. (I need my head examined for volunteering to leave my sunny Fla. home to work in Ohio. What was I thinking???) I think they are 255/70R 15 on 8 inch rims. Maybe if I talk nicely to my wife she will go out and take a...

Thanks for the complement. I spent about a year going through everything on this truck. New GM crate engine, rebuilt transmission (700R4), rebuilt rear end, cut out all the rust and welded in new panels, paint, modified the AC system… the list goes on and on. Adjusting the doors on these...

Go to this web site http://www.tirerack.com/ and put in your vehicle information, click on “tries” in step 2, and it will give you the OEM tire size. Don

The door strikers were installed after the truck was painted at the factory, so paint on the striker is an indication that area has been repainted. The misalignment of the doors is an indication that repairs may have been made. Nether of these factors have anything to do with the mileage on the...

Look at the post in the door jam that the latch locks onto. This is called the Door Striker and it should have a gray plastic insert on it where the latch strikes it. If the plastic is missing you need to replace the Door Strikers. If the plastic is in place, you can loosen the Door Striker and...

I will give you my thoughts along with what I feel are the pros and cons on chassis paint options. POR 15 - I have not used this product so I’m not speaking from experience, just what I have seen written about the product. This is an excellent product if you are looking for protection from...

What are you confused about? Where did you see that they are recommending using epoxy primer and BC/CC? Are they using BC/CC on the chassis or the outside of the car? Please post the link where you saw that. I don’t see anything about that in the link you posted. The link you posted shows...

I did a little looking around and found that POR-15 paint is what a lot of people are using for chassis restoration. I don’t know anything about it, so this is not a recommendation just some information. Here is a link to a site with more information about the product...

Hi GMC_Love I looked at the reply you posted on the “Free Shipping” thread that Robert started and noticed that you are located in Saudi Arabia. I’m curious, how many of these old trucks (1973 to 1987) are there running around in your country? Is it easy to get replacement GM parts from your...

Is there a special paint for the chassis? Yes there is paint that is engineered specially for this type application. I’m not familiar with pros and cons or the cost of the paint but I’m sure someone will jump in and give some advice on it. What is the best way to eliminate the rust from the...

Hey GMC Love, It would be helpful if you ask specific questions here, but I will give a shot at what I think you are trying to ask. First off, nice looking truck, not too many long bed step sides around. The first thing I would be looking at is the drive train and what you plan to use...

On an 87 with fuel injection the fuel tank selector valve switches four things, supply line, return line, pump electrical feed, and the gauge lead. Guam52 stated that when he switches to the left tank the engine stumbles and misses. Based on this statement I think the power for the left pump is...