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88-98 Chevy / GMC OBS Truck LS Swapped Dirty Dingo Low Mount A/C Install Part 2

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Part 21: The 1991 Chevrolet (Chevy) Project Shop Truck has air conditioning! In part 1, I showed you three different a/c compressors and chose to use the low mount Dirty Dingo compressor. In this install, I show you how to install the compressor on your LS motor for a truck application AND install the motor with the a/c to show what modifications are needed to make it fit the OBS truck frame.
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A few highlights:
1) If using an engine with the 3 cast in mounting bosses (where only 2 are tapped) it is necessary to drill and tap the lower boss to mount this kit.
2) Spacers are provided for the upper mount and for the tensioner. Read directions carefully, it will tell you which bolts and spacers to use in each application.
3) Take your time drilling and tapping
4) The framework is not difficult, position your engine in the frame prior to cutting to be sure of where you will cut, don't guess.
WE GOT SOME LAURENCEVILLE GARAGE SWAG AND DECALS!!
Check it out with this link....
saydesignsllc....
You can use the link below to find PARTS and TOOLS used on this project that can be found on Amazon. We appreciate your support of the channel. Any items purchased through the provided links provides a small commission to the channel. Thank you and good luck with your project!
www.amazon.com...
Check us out on Facebook at laurencevillegarage
Parts used for sway bar swap:
1) Dirty Dingo LS Low Mount AC Combo Kit #DD-LA-SD7B10-LM-KIT-TR $419.99
amzn.to/3IZl1F8
2) Sanden AC Compressor Fittings DD-LS-508-F $19.99
www.dirtydingo...
tax $34.65
3) ATOPLEE Metric thread Tap M10x1.5 $8.69
amzn.to/33fmJ5Y
4) Drill America - DWDCORP6 R Cobalt Drill Bit (Pack of 6), DWDCO Series $25.72
amzn.to/3GAtWex
5) Gates K040365 Micro-V Serpentine Drive Belt $9.65
amzn.to/3Bcnucs
Total for this project: $461.04
link to Dirty Dingo install instructions: www.dirtydingo...
Oddly enough, the kit for the a/c parts cannot be found on the Dirty Dingo Site using the above part # even though it shipped from DD. It may be a specific # used by Amazon. The part # for the fittings is on the DD site, but not on Amazon.
As I mentioned in the video, I wanted to post up what the parts cost. However, I did not want to add this expense to the total of the project truck. Reason? It is optional and a lot of people may choose not to run a/c. In my case I will need it and made the decision to go this route.
Disclaimer: This video is intended for entertainment use only, if in doubt as to your mechanical ability, consult a professional to perform the needed work. Thank you for watching this video on the Laurenceville Garage channel, if you would like to help support this channel you can do so through the following links. Thank you! Donate - CahApp- @$Laurencevillegarage Paypal - paypal.me/LaurencevilleGarage Venmo - LaurencevilleGarage Zelle - laurencevillegarage@yahoo.com Email: laurencevillegarage@yahoo.com

Опубликовано:

5 сен 2024

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Комментарии : 41

@eduardopena489 2 года назад

Great content sir. Following closely I’m swapping a 94 obs myself

@randydarcey2947 2 года назад

Great video. I used ICT upper a/c mount. It gave the factory truck alt balance . But this is good advice. Thanks.

@laurencevillegarage 2 года назад

I'm going for the factory look under hood of an '01. I don't think it will look out of balance with the factory air box and coolant tank on the passenger side. Thanks

@alexfromthe2094 2 года назад

Another great video THANKS keep them coming 👍🏼

@jrocha383ws6 2 года назад

Thank you sir for sharing your knowledge with us obs owners snd enthusiasts. I salute you my friend.

@laurencevillegarage 2 года назад

You are welcome, hope it helps you out.

@shugg0517 2 года назад

Thanks for all your help. Keep putting out those great videos

@laurencevillegarage 2 года назад

Thank you!

@jameschavez589 Год назад

Great job my friend ! Thank you great learning lesson I will be doing the shame two a 97 1ton Dooley I can hardly wait to put m 5.3 in her again thank You From N.M.

@laurencevillegarage Год назад

I'm glad I could help, good luck!!

@corriganperformance6179 Месяц назад

I did the same setup with my 95 except mines 4wd,i noticed the coldest i could get out of vents is 50 degrees curious if you ran into same problem?

@laurencevillegarage Месяц назад

While I never put a thermometer on the vent, I have had no issues.

@MOE13576 9 месяцев назад

Good evening sir. Im doing a swap on my 91. How would i connect the 4l60e shift linkage wire to the truck(steering column) ? Seeing that it had a 700r4(rod shift linkage)

@laurencevillegarage 9 месяцев назад

My '91 was a manual trans, so I didn't have that issue to deal with. I have heard (I am not an expert on this issue) that if you check out the the automatic shifters out of '90-94 3/4 and 1 ton OBS trucks, that they use the linkage you need. I am not able to confirm this, but it is a route you can check out to see if it will fix your issue. I know many others have dealt with this in the past, so, don't give up, a solution is out there. When you do find the right fix for your truck, let me know how it worked out. Thanks for the question. Good luck.

@MOE13576 9 месяцев назад

@@laurencevillegarage I couldn't find anything regarding this "burden". But eventually I did just last night. I learned that, I can just use the stock shift linkage from my 91. Just a little modification is needed(to the linkage). I'll let you know how it goes, once I get to it...and thank you.

@chrisriedel7952 2 года назад

Really appreciate your content, look forward to watching more videos on the progress

@laurencevillegarage 2 года назад

Much appreciated!

@hanktownsend7911 2 года назад

@@laurencevillegarage do you know if there is a mount to be able to use the ac compressor that comes on a 98 Tahoe?

@laurencevillegarage 2 года назад

@@hanktownsend7911 Yes, Dirty Dingo makes one that will allow you to use your existing R4 compressor.

@Brandon_obs_ls Год назад

@@laurencevillegaragedo you think that instead of drilling and tapping the block it would be possible to extend the lower bracket mabey weld an ear and then use the factory tapped hole mabey with a washer or a spacer if needed

@laurencevillegarage Год назад

@@Brandon_obs_ls I would need to crawl underneath the truck and see. It's been a bit since I installed that unit. I understand what you mean, I think if you got creative, that might work. It would be more work I think. Drilling/taping the hole was not difficult to do, but you do want to be very careful when you do it and pay attention to your drilling depth.

@vernonchaney65 Год назад

Will this work in 73-87 c10 trucks?

@laurencevillegarage Год назад

The square bodies have a different frame, should be easier to mount…but, I have never done that to the older trucks.

@sinistersilverado965 Год назад

I thought about LS swapping a truck, but after careful thought, I just bought a newer truck with a LS in it

@laurencevillegarage Год назад

I understand, I have considered that myself…someday maybe.

@waytoodeep9546 2 года назад

Will you please go into detail when the time comes how to wire up this compressor I’m doing a swap on the same truck but I’m going to use the top mount with the sanden

@laurencevillegarage 2 года назад

Will do, thanks for watching.

@GlassAnvil 8 месяцев назад

this seems to be the easiest part of the job, im more interested in how and what is needed to connect the lines and condenser and drier etc and charging the system...

@laurencevillegarage 8 месяцев назад

Putting a "low mount" compressor in an OBS is work. The frame has to be modified to allow clearance not only to mount it, but to have enough room to allow removal in the future without lifting the motor up for clearance. Having said that, all the remaining a/c parts are what would be correct for a 1991 Chevy truck. The only "modified" parts would be the hoses going to the compressor. I would use the "original" end of the hose that mounted to the accumulator and the condenser then have hoses made to connect to the manifold that attached to the compressor. I used a company called "Hose-Fast" located in Garland Tx. They made what I needed while I waited. It was not expensive. The 2 hoses I had made were $35-45 each (if I remember correctly). As far as charging up the system, I took it to a friends garage and he had the proper equipment to vacuum out the system and oil/charge it back up. It did not matter that it was an aftermarket compressor and custom lines. The fittings are all there to do the job. If I did it again, the only change I might make would be to remove the factory low pressure switch and replace with a 'trinary" switch. Why? The factory compressor had a high pressure switch built into the back of it. The new compressor does not. This can leave my system vulnerable to issues if I have a high pressure problem. By removing the low pressure switch and replacing it with a "trinary" switch, that one switch controls the high pressure cut-off, low pressure cut-off AND will switch on an electric fan at a set pressure. The advantage to that is the fan does not need/have to run as much. With the LS pcm, the fan is wired so that when the a/c button is activated, the fan is as well. If you have a cold engine, you really don't need the fan on at that moment. With the "trinary", the fan will be activated, but not until the a/c system builds up to a set pressure. Meaning the start up of the motor and a/c, the engine is not hot, or even warm. Turning on the fan at that moment adds load to your electrical circuit and additional wear on the fan(s). Over a period of time, that adds up to a lot of minutes/hours that your fan is not running because it is not needed yet. A "trinary" is not expensive and is not difficult to wire up. Check RU-vid, there are plenty of videos about how to wire one up. They also (usually) install with a schrader valve. Means that it can be added or replaced without having to discharge your system. If it ever needs replacement, simply unscrew it and do the wiring part. That can even be done with a simple 4 wire plug. No need to take it to someone to discharge it and recharge it. Therefore, saves you $. A long answer, but, I hope it helps you out.

@r.t.1942 2 года назад

i saw a kit that would have located the ac up top ,looks easier

@laurencevillegarage 2 года назад

It can be, depends on the look you want and other things like if you want to run a turbo. I am looking for a totally stock look for the '01 5.3. I've run the R4 and Sanden compressors on top and the upper mount was some work as well, just in a different way. All depends on the compressor of choice and what brackets you choose to do the job. I wanted something different and usually choose the harder way on most things!

@custom99banshee 2 года назад

I have a 93 Sierra with an ls. I bought the same bracket then decided to just do the top mount. My question is though.. where did you put the high pressure cut out. I just vacuumed mine out and filled it today and when filling ( not even a can in yet ) it shot the orifice tube threw the bottom tube of the condenser coil

@laurencevillegarage 2 года назад

Wow! I've never heard of that happening. Originally, I left everything original and adapted the hoses to fit the R4 compressor at its new position. I left all the sensors in their original or near original positions. Even on the "91 with the low mount Dirty Dingo compressor, sensors are in their original positions.

@genechoate5020 Год назад

I have seen it happen on the Cadillac’s before and that would break the suction temperature sensor. There were two orifice tube designs depending on the year of truck, one went in the evaporator inlet the other went in the condenser outlet, they’re not interchangeable.

@stephenjohnston226 2 года назад

Keep them coming. Do you have to make your own ac lines? Also are u using holy terminator?

@laurencevillegarage 2 года назад

I will need to have a couple lines made. I had hoped I could modify the existing lines but I think they will both be several inches short. I’ll wait until the heater hoses and exhaust manifolds are on to finalize their exact positions. Not using Holley, I’ll modify my own harness and use the original pcm. It’s off to the programmer now.