Torque converter bolts.

[chrger1967]

I was getting a vibration when driving my charger. Felt like it was in the transmission. So I figured it’s an half wa decent day, and look at what I found. I’m just gonna order a set. I just hope this is the problem. I really don’t want to check the others without having a new one to replace this missing one.

 

[RemCharger]

Original bolts are your best bet. I just skip the blue loctite and go straight to red now.

 

[chrger1967]

Original bolts are your best bet. I just skip the blue loctite and go straight to red now.

I don't think it fell out. I was told another 383 was put into the car by the prior owner. I doubt it that bolt was ever put in. A missing bolt like this should cause a balancing issue... No, and that's the vibration I'm feeling?

 

[MWbirdLOVER70]

Or that loud annoying flapping sound at low rpm’s

 

[chrger1967]

Original bolts are your best bet. I just skip the blue loctite and go straight to red now.

https://a.co/d/6wOxZx4 These should be good no?

 

[RedBeard]

https://a.co/d/6wOxZx4 These should be good no?

Hopefully.

 

[65CopCar]

https://a.co/d/6wOxZx4 These should be good no?

Don't think so. Mopar used 5/16" and 7/16 screws. These are listed as 5/16" and the picture makes me think you have 7/16". You need to verify what diameter screws you have.

 

[65CopCar]

I think these are what you need. I also sometimes use a longer version (ARP 2902 part number).

Amazon.com: ARP 2002903 Pro Series Flexplate Bolt Kit : Automotive

Buy ARP 2002903 Pro Series Flexplate Bolt Kit: Main Bolts & Studs - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

[chrger1967]

I think these are what you need. I also sometimes use a longer version (ARP 2902 part number).

Amazon.com: ARP 2002903 Pro Series Flexplate Bolt Kit : Automotive

Buy ARP 2002903 Pro Series Flexplate Bolt Kit: Main Bolts & Studs - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Aren't the bolts I need 5/16 24 thread?

 

[chrger1967]

Don't think so. Mopar used 5/16" and 7/16 screws. These are listed as 5/16" and the picture makes me think you have 7/16". You need to verify what diameter screws you have.

****, I thought they were fairly standard bolts. The 5/16 24 thread ones are coming on Sunday. I hope they fit.

 

[33 IMP]

Vibration when engine is running, but the car not moving? Something in the engine or transmission.
Vibration when moving can be almost anything.... including eight year old tires.

 

[1967coronet]

I will check in the shop tomarrow , I may have some I can give you.
I will PM you if I do.

 

[65CopCar]

Aren't the bolts I need 5/16 24 thread?

Technically they are screws not bolts, but that don't matter.

Lower performance cars got 5/16" the performance ones got 7/16". Both are listed in the service manual. The picture looks like 7/16" to me, but could be wrong.

 

[qkcuda]

I would check the flex plate carefully for cracks. It was probably flexing a lot with one bolt missing.

 

[65CopCar]

Actually you might have the 5/16" screws. The first listing I believe is 5/16" and the second is 7/16". So the flex plate with the round hole is 5/16", and that looks like what you have.

https://www.ebay.com/itm/3972922046...Mb0Lhp2ZJT1K5IPE6yBaBhllMI|tkp:Bk9SR6rrttHZZg

https://www.ebay.com/itm/3044925970...tvnTNzyvumLFWAHmzaY2RMVNlL|tkp:Bk9SR-qg0tHZZg

 

[QuickBpBp]

From the picture that doesn't even look like it's lined up with the hole. It can ONLY bolt on one way to get all 4 bolts in.

 

[chrger1967]

I would check the flex plate carefully for cracks. It was probably flexing a lot with one bolt missing.

The car was never really driven. This guy did a ton of work and it was never driven. It hasn’t been on the road since 1984.

 

[chrger1967]

Vibration when engine is running, but the car not moving? Something in the engine or transmission.
Vibration when moving can be almost anything.... including eight year old tires.

I’m thinking a little of both. I checked today just for shits and giggles and really found a problem.

 

[chrger1967]

Technically they are screws not bolts, but that don't matter.

Lower performance cars got 5/16" the performance ones got 7/16". Both are listed in the service manual. The picture looks like 7/16" to me, but could be wrong.

The original engine was a 2 bbl 383. So I’m hoping it the 5/16. But since reading some of these post, I’m going to order the 7/16 as well.

 

[HEMIB]

From the picture that doesn't even look like it's lined up with the hole. It can ONLY bolt on one way to get all 4 bolts in.

Thats right the flexplate only lines up in 1 position that converter will be spinning off centre