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Looking for some info on what plugs should go in the two holes on each side of the body along the trunk. Something needs to go in there as the holes are outside the trunk seal. Picture attached. Thanks, Mark

I recently acquired this Demon from the previous owner that purchased the car from a restoration shop back in 2008. Since then it has been stored in a climate controlled shop and driven less than 500 miles since! I will post more pictures shortly but wanted to judge interest. All numbers...

I just purchased a new pos battery cable for my 71 Demon and was looking for someone who has a pic of the connections next to the battery. Mine has an extra black cable lead at the top close to the battery post that the old cable did not have. Thanks much, Mark

Hi, I'm trying to figure out how the jack spring holds the jack in place and how the tire iron mounts on the pass side of the trunk. The jack instructions aren't much help...lol.... Thanks much! Mark

Hi, I'm looking for the underside of the trunk lid showing the correct bump stop placement. Id imagine the Dart would have the same bump stops. Thanks, Mark

Hi, I'm putting the finishing touches on a 71 340 Demon I just purchased and it is missing all the seat belts. Not sure why as the most of the rest of the car has been nicely restored. Just looking for some pictures of the seat belt locations if anyone has any. I know I can just pull the carpet...

Hi, Trying to find out what stock rear end size and gear ratio was fitted in 71 Demon 340 with 4 speed. Thanks in advance, Mark

Probably a shot in the dark but I'd like to put the original carb on the 71 Demon 340 4 speed I just purchased. Thanks, Mark

Hello, I'm looking for the correct threaded rod, wingnuts and black cup washer to mount the spare tire in my 71 Demon. I have the correct hardboard cover, jack and jack base. Thanks, Mark

1971 Plymouth 340 Duster 1. All numbers matching (Engine, transmission, radiator support, fender tag, VIN plate) 2. Manual steering and brakes 3. Column shift auto 4. 3.55 rear end 5. Currently has headers and Flowmaster exhaust 6. Fender tag and build sheet 7. Original sharks tooth grille 8...

I recently purchased a new throttle cable from PG Classics, and the cable is about an inch too short. I was able to lubricate my old one and it works fine now. The car is completely stock including the TQ carb. Just a heads up for anyone looking for a new one. They go by ezparts4cars on Ebay. Mark

Does anyone have a trick to getting the wiper knob off? I can't take the dash bezel away from the cluster until this knob comes off, and it looks like a press fit. I can't see how to get it loose from the wiper switch shaft without breaking something.... Thanks, Mark

I just removed this Thermoquad from my 71 340 Demon. It is a 6319S, shows correct for a 1973 340 Auto. The carb was professionally rebuilt about 2 years ago and I had it on the Demon for about 750 miles. The car ran great, but could never get the idle adjusted correctly. I can't see any cracks...

I have a NOM 71 340 Duster and the original exhaust manifolds are long gone. I'm not a fan of headers and the non stock exhaust that is on the car now. Looking for original 340 exhaust manifolds. Thanks, Mark

Looking for a working Mopar AM/FM radio for my 71 Demon. Thanks, Mark

I have a drivers side hood hinge that has started to bind up. Any tricks out there to try freeing it up without replacing the whole hinge assembly? Tried the usual spray lubricants without any success. Thanks, Mark

Just had my new to me 71 340 Duster delivered from St Louis yesterday, and the car has a definite lean to the passenger side. I put it up on my lift but can't see anything obvious. All the structural components I see are all rust free and unbent. Maybe torsion bar adjustment? It leans equally...

Hi, I've been posting on here for awhile now, but never introduced myself. I'm Mark Gibson from Sun City, just northwest of Phoenix. My wife Melissa and I are into Mopars, the newest addition being a numbers matching 71 340 Duster that arrived today from St Louis. We also have a 71 NOM 340...

I have searched the forum for Thermoquad related issues and this seems to be a new one....I can't seem to get the choke to engage. The fast idle cam will not rotate so that the cam contacts the high speed adjustment screw. The car runs fine once it is warm, although another issue is the idle...

Looking for a drivers side hood hinge assembly for 71 Demon. I'm sure other Mopar years/models will fit, just not sure which ones...please PM if you have a good one. Mine is all bound up and causing problems... Thanks, Mark

I have a drivers side hood hinge assembly that is all bound up. I live real close to Desert Valley Auto Parts here in Phoenix and was wondering what other Mopar years and models use the same hinge assembly? Thanks in advance, Mark

Hi, My 71 Demon will not keep the hood adjustment on the LR corner and now I know why. The rear nut holding the bolt on the inside of the hood is stripped and of course the bolt won't stay tight. In addition the hood hinge on the same side (drivers) is binding. Any suggestions on how to get a...

From a simple job of changing out plug wires and a electronic distributor with a non working vacuum advance on my 340 Demon I have managed to pooch things up to the point of no spark at the coil. I inadvertently switched plug wires and so went thru the drill of finding TDC on number 1 cylinder...

I'm looking at purchasing a 72 Demon to go along with the 71 340 we have. I really am not a big fan of the non rallye dash in the 72's. I have a line on a complete rallye dash frame out of a 71 Demon. Is it possible to remove the dash frame with the windshield in place? I know there are mounting...

Wow, one I haven't seen before. On our 71 Demon 340, there is no sign of an oil dipstick, or the tube assembly, or for that matter any sign of where that would even be installed. The engine was rebuilt 2 years ago, and it runs great. It has been driven sparingly since the restoration phase, and...

Im just finishing putting my 71 Demon 340 back together and am going thru some electrical troubles, here is the sequence of events: First put the car back on the road, the body shop put all the lights,bumpers, etc back on except for the rally cluster. I installed that. At first, everything...

I am in need of the latch that holds the fresh air vent door closed in the passenger side footwell. Seems like this is a hard part to come by. I could make one, but rather use original parts if I can... Thanks, Mark

I saw 2 Demons at Carlisle that had the block DODGE emblem on the drivers side of the hood, up close to the front edge. It looks like this emblem is supposed to be there...at least from the research I've done so far. Anyone know the approx measurements from the left side of the hood and the...

I replaced the wiper motor thinking the no park issue was in the motor. Same results with a rebuilt unit. Any ideas? Could a bad switch cause this problem? This is a 2 speed system. Thanks much, Mark

I am in the process of getting all the bugs out of my 71 Demon 340 after repaint and reassembly. The turn signal indicators glow when the parking lights are on. Turn signals and park lights all work. I'm thinking a less than good grounding of the instrument panel is the most likely culprit. I...