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I found it difficult to come up with a price for my 71 Demon so I thought perhaps this will help others with pricing theirs. My car was a tribute to the 340 with all the exterior parts including the hood scoop holes with the rubber rings. It had been build as a /6 but a previous owner had put...

This design reminds me of an air compressor which is used on large substation circuit breakers to activate the re-close mechanism. The compressor had a patent of 1923 if my memory serves me. In the air compressor, a single solid piece of steel was machined into two pistons (one on each end)...

I know this has been addressed probably more than a few times but I'm wondering if my problem is the result of a poorly built aftermarket switch. So I understand how the tang on the heavy duty spring on the back side of the steering wheel can (inside the copper horn collector) is to be...

My wifes CX5 has been shifting extremely hard into and out of 3rd, and 4th gear and sometimes while climbing a steep hill it would do it in 5th. We want to sell it and with this issue we didn't feel we could without fixing it. I had an appointment to have it looked at by a dealer but all I...

Here is the path to my finally fixing a wandering Dodge Demon: All new ball joints and tie rod ends...helped. Rebuilt gear box...helped a lot but it still wandered and I could not get the caster and camber I wanted. Unable to get enough caster adjustment, I did some research and I noticed QA-1...

A while back I tossed a stack of about 50 business cards that my neighbor down the street gave me. You see I would be welding a quarter panel on a car and he would stop by to give me "his welders" card (meaning the guy he pays to weld things for him). Totally ignoring that I told him I used to...

So I have read a few threads on ride height and many of the members are saying to set it to what you like... In my case, the car was level along the rockers and looked pretty good so when I changed out my control arms I put it back that way. I started another thread on here asking about an...

I own and have used my Fastrax alignment tool to align several cars with great success. The biggest drawback however is that I can not watch the changes to both caster and camber as I make them and the 2 upper eccentrics to adjust both caster and camber is causing my brain to overheat. Is...

I'm curious if anyone knows if the QA-1 upper control arm eccentric bolts provide more adjustment than the OEM bolts? They say they provide 2.5 degrees of camber but I'm not sure what the OEM would provide as a comparison? I can call them in the morning but I was curious if anyone was able to...

I am questioning the necessity of adding a throttle return spring to my Holley 600 cfm Street Warrior carburetor which I am installing. It comes with a throttle shaft return spring which works well with the Lokar accelerator cable. Adding the Lokar throttle valve cable to the 904 transmission...

Is it just me, am I the only one? So I moved to Idaho a few years ago from Minnesota. Minnesota is known for the MSRA (MN Street Rod Assn) "Back to the 50's" car show as well as the "Street Machine Nationals", both events "show" well over 10,000 cars. And then there was the usual small town...

Hi there, I have a 71 Dodge Demon and I am ready to cut the holes for the two rubber donuts. I noticed by the arc cut out of the under-hood support that they are kinda close to the inside edge of the dual scoops. I was wondering if anyone had a FACTORY cut hole in their hood, if you could...

There was a question a couple days ago about transmission angles and I copied the following link in response but the OP was quickly deleted. This is such an interesting topic that I thought I would post the link here for anyone interested. There is a detailed article on setting up transmission...

Hey so I'm planning to replace all my front suspension bushings with probably a graphite impregnated urethane compound. I can't recall the company that I was looking at but they were also advertising their adjustable strut rods. I guess I'm thinking more along the lines of caster adjustment...

Recently my ECU fried on my AC which was annoying. Replaced and it works (I hope it still does, I should say). Then the next time I drove the car (71 Demon) the new Classic Instruments Tachometer and Speedometer would intermittently quit working at roughly the same time. So today while taking...

So I moved a couple years ago from having several autobody supply stores within easy driving distance to an autobody desert. I've been forced to either order supplies online or make due with home improvement crap. And everything I have tried from Autobody Supplies Online has been a failure...

I could probably call Summit or Jegs but you guys actually drive this stuff so I trust your opinion more. I would like to go to a reverse pattern manual valve body but NOT have the engine braking feature. As for my intended driving purpose, I prefer a manual transmission for the added input it...

I recently installed the latest version of classic auto air's Mopar A body AC/Heat unit. When I say latest version, I mean that it has rheostats on the HVAC control levers, not the older cable system they used to sell. So before I tear my dash apart to get to the fan switch I thought I would...

3 questions: 1. What year? 2. Dodge, Plymouth, or either? 3. What is it worth? I suppose whatever a local guy will pay but a ballpark $ would help. I have a 71 Demon and I'm 99% sure this is NOT the correct seat. I think they had a moveable headrest and if I am not mistaken, I believe the...

So I had replaced all the steering components with the exception of the steering gearbox and my Demon drove horribly down the road. Center slop in the gear box was beyond excessive. After being on the waiting list for about 3 months to have mine rebuilt by Firm Feel, I got one in the mail a...

My PS system has a clear fluid. My rebuilt "Firm Feel" box has a clear liquid. The manual for 71 Demon says to use Mopar part #(obsolete). The chassis manual says to use the recommended fluid or one that will not harm rubber hoses. Yes I could call Firm Feel on Monday ( its Saturday...

I have read the instructions in the 71 Plymouth Chassis Service Manual and it is pretty straight forward. Remove steering column, remove hoses, remove arm, remove bolts, remove gear assembly. I have a 71 Demon with a 318 and manifolds...(probably not stock to 71). Anyways, I was looking at...

Perhaps this should be posted under the tire and wheel category but I'm thinking more broad than just Mopar wheels. A few weeks back I was held up in traffic on a major highway near me. The reason being was an accident. When I finally got to the scene, there was a small Toyota sedan in the...

I was working in my garage the other day when my 80 year old neighbor lady who owns a 2016 RAM pickup comes in my garage looking for assistance. She's a firecracker and believe me the truck fits her personality. Anyways, her battery had drained down overnight and she swore she didn't leave...

I have a 71 Demon with tail light issues. I do have a schematic however I'm not positive the lights worked properly before I noticed the turn indicators not working the other day. And what I mean by that is I never checked them with the brakes on. Without frying my melon with the schematic...

I will be calling Classic Auto Air tomorrow with my question and/or to order parts if necessary but first thought I could use a little help from you geniuses out there so I can speak more intelligently when I call. History: Installed Classic Auto Air 134a system on my Demon. Compressor comes...

I have a bad habit of pointing out the elephant in the room, you know the one thing nobody seems to talk about. Well... enter relative humidity to the reducer/activator speed equation. I have never seen humidity mentioned to any extent in a technical data sheet for automotive paint and I must...

First I need to say that I have painted well over a hundred cars in my life and I always use high quality wax and grease remover prior to sanding, body work, primer, final wipe down prior to tack ragging. A gallon of the stuff seems to last forever so the cost is not an issue for me. Enter...

Looking for the rear sail vinyl top trim and the drip rail chrome trim for both sides. This is for a FULL vinyl top, not the 3/4 or whatever they call the other version. I have the short piece at the bottom of the windshield post so I do not need those. See picture please. Thank you