1949 resto mod new project
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I haven't been active on here for quite some time because I haven't been building any pick ups. I just started a resto mod project on a 1949 3100.
Here is the plan. I am using a Mustang II front cross member with 2" drop spindles. On the rear I have a Lincoln Mark VIII IRS. I have a very low miles LS2 6.0L out of a 2004 Corvette. I am currently researching if the GM 8 speed automatic will work with this engine. I am putting this on an auto leveling air ride suspension. The intentions with the air ride is for it to maintain a preset height and proved the smoothest ride possible. I am also going to attempt to use the Lincoln Mark VIII anti-lock brake and traction control system. Any input positive negative or indifferent will all be appreciated. If any of you have done any of the things I have listed please chime in. I will be posting photos shortly and intend to document this entire build. Thanks. |
Re: 1949 resto mod new project
Looks like a great truck...but this would be better in the 47-59 project build thread
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I wasn't sure where to post this. Is this something that I need to move? Or do the moderators do that? Thanks.
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One of the mods will have to move it....but this is where it needs to be....http://67-72chevytrucks.com/vboard/f...play.php?f=205
And welcome aboard... |
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Ok, thanks looking forward to documenting this entire build. If anyone has any input or experience with some of these mods please let me know. Especially on anti lock/ traction control systems.
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Looks like you starting with a very clean truck! I'm looking forward to the IRS install. Should be an awesome project when finished.
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Re: 1949 resto mod new project
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I guess the moderators have this in the right area now. I plan on up dating this project two or three times a week and will respond to all questions and input as they come in.
Right now I have the Mark 8 IRS setting under the truck but won't start the installation till I install the Mustang 2 front cross member. I am currently waiting for the cross member to come in and am ordering a new front cross member / radiator support. The original support is cracked and rusted through in places. This rear suspension looks like it is going to be a lot easier to install than I thought it would be. The lower shock mount on the lower control arm is a straight shot up to the frame rail and the air bag upper mount will easily mount to the frame without cutting the frame. I will have to clearance the frame for the upper control arm. I also intend to box the frame in too. I have one question someone here might be able to answer. This truck has the old knee shock absorbers on the front. I have never seen these on this late of a truck. I will enclose a photo. Did Chevrolet have these from the factory in '49? Just curious. Thanks and I'll keep you posted |
Re: 1949 resto mod new project
neat start! the truck will be so light with all those aluminum parts, you might have 8 gears and only use 3 haha.
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My '49 also had the knee action shock absorbers. I'm assuming that they were factory. |
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My '18 Silverado has a 6.2 with the 8 speed auto in it. very smooth shifting, you have to be paying attention to count the shifts.
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Lever-action shocks were standard on late 47, 48, 49. In 1950 they went to the tubular type shocks...Jim
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I was more referring to the all aluminum vette engine and trans compared to the cast iron six. the irs will be a good way to keep the power down, a guy named coach did a tbird IRS on here a couple years ago. edit for the link to the IRS install http://67-72chevytrucks.com/vboard/s...=coach&page=35 |
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Thanks. |
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Thanks. |
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The Mark 8 used Ford's 8.8" diff. internals. They are an open diff. because the traction control would handle the wheel spin. Since I plan to use the Mark 8 anti lock brakes I am going to try the traction control. If it don't work then I'll put a locker diff. and a gear ratio close to the 06 vette. |
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I thought of something else regarding the 8 speed, I drove an 8 speed camry to ohio and back in 30 hours, and when the cruise was working it was wonderful because the radar cruise would hold the higher gears and accelerate/decellerate smoothly enough not to downshift/upshift a lot. then the weather started sleeting, and the cruise kicked off, I had to use my right foot. and no matter how hard I tried I could not maintain a steady speed, if I started slowing down on an incline, a slight push on the gas pedal would downshift to 6th, sometimes 5th, and the acceleration was just so rapid in those gears that I would let off. I spent about 1200 miles floating between 68 and 80mph, shifting up and down. I could select 6th and lock it but the fuel economy went down, nothing above 6th was selectable.
I know a 4 cyl camry doesnt have a lot to do with a 400 hp v8, but that was my experience. make sure the cruise works and "talks" to the trans or you might have the same rubberband effect. make sure the Mark VIII traction control isnt just applying the brakes to the spinning wheel. my pilot works like that, called vehicle stability assistance, and in snow it overheats the abs. its not a good thing for acceleration either. feels like its getting punched in the gut. |
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As a GM dealership technician, I recommend you don't use the 8 speed. Its a very problematic transmission. There's a lot of issues with the torque converters, stator supports, and the valve bodies. I also don't care for the shifting when you compare it to the 6 speeds or even the newer 10 speeds. These trucks are so light, I don't think you can go wrong with the older 4 speed autos. The '52 I'm currently building is getting a 4L60e.
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I'm still going forward with the anti lock brakes and shutting off the traction control feature. The Mark viii's use the Ford 8.8 diff. So I think we'll just go with a locker or limited slip diff along with the best gearing for the LS2/6L80e. |
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Very nice project!
Sounds like a great drivetrain. I’ll follow along. |
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I'm open to any and all input. This is going to be fun. |
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I haven't posted in a couple days. I was sent the wrong Mustang 2 front cross member. So I am waiting for the correct one. In the mean time I am still stripping down the frame and discarding the stuff I don't need. The original front cross member was cracked and rusted pretty bad so I have one coming.
The owner of the truck wants to go with a smooth firewall. Since there are some rust issues with the floor to firewall seam I am replacing that whole area. Does anyone have a suggestion on the best firewall to use with the LS2 6.0? |
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i would look for one with a reccessed feature so you can move the engine back some...there are many styles out there ...just need to pick what you can live with...or build your own
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The closer I look at this body I'm finding a lot of thick Bondo on the cowl side panels. Those panels are $65.00 each and real easy to replace. Most of the floor is in acceptable condition and there is some rust under the bottom door hinges. The body mount bushings are original so I'll have to replace them while I have the body off. I got a question that is way off topic, I mean way off topic. I am also building a custom '34 Ford Sedan Tudor and I need a passenger door really bad. So if anyone has one or knows where one is let me know. The ones I've found on the net are way too expensive and even the replacement skin is through the roof. It's funny that I can buy a door skin for a '48-'54 Chevy pu fot $60.00 but one for that old ford is $600.00. Anyway thanks. |
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I haven't posted in a few days still waiting on the front cross member. I did get a replacement cross member/ radiator support. Here is a photo of it sitting in place and ready to tack in place.
This afternoon I am starting on making my mounts for the lincoln IRS and prepping the frame to accept it. I'll post pics tonight. |
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I finally got in the correct M2 front crossmember. I have worked on several cars and trucks using the M2 front suspension and have had to correct a few that were poorly installed.
I have never installed one from the beginning. First I have to get my front crossmember in place then move to the M2 crossmember. I am using for my references 4 points where I dropped plumb bobs from the center of the 2 front and 2 rear leaf spring mounts. I cross measured to see if the frame was square and it shows to be approx. 1/32 to 1/16 out of square. That's pretty darn close. Anyone who's has done an M2 front end please chime in and let me know if I am on the right track here. |
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Just a quick update. I got the front suspension tacked in place. I'm still waiting for shocks. Next am doing the firewall before I pull the body.. I set the engine in place to get an idea where I want the tunnel . I'm waiting for the transmission too.
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