Mine had been hacked out like that when I got it! I had to get a new one from AMD and replace it. Fortunately I had to replace the floor pan too so it wasn't that big of deal!
I used Accurate Exhaust complete OE correct system on my Challenger. Exact fit complete with oe correct numbers on mufflers and resonators. Shipped right to the shop ready to install. Very happy with the results.
Hagerty is my 1st choice because of their roadside assistance feature, but I know several people that use Grundy with no problems and they are a little cheaper.
Definitely Anco! 521 Restorations have OEM replacements at a good price.
https://521restorations.com/16in-anco-style-wiper-blades-for-70-74-e-body-and-71-74-b-body/
It never hurts to dissemble and inspect with new seals and gaskets.
Brewer's Performance might be able to help you with that if you give them a call. They are all about 4-speeds and manual drivetrains and are very accommodating to work with. I will link their website below.
Click: Brewer's...
I used the coupler supplied by Borgeso, part number #036425, and it worked perfect. I had to measure the shaft length and cut it off. The coupler slid right over the shaft and secures with the set screws, no problem.
Accurate Exhaust for exact OEM original. Compete system from manifolds thru rear valance, including SS tips is around $1200.
A perfect fit on my Challenger!
There is a difference in the shaft length, even the OEM power steering shaft. You just simply cut off to length needed and the joint from borgeson is a direct fit. Easy modification!
I used the joint that Borgeson offers part number: #036425 - $143.33 from Borgeson. You can also buy them on eBay for around $129.
Absolutely the best way to go!
I would getting away from those places and check with a real tire and wheel store. They have access to a lot more sizes than just what they stock. I will put a link to the store that I got mine below. They have any offset and width combo you want.
Also, They came to my shop mounted, balanced...
If the tach is off more that you like you can adjust the calibration. I have included a link below with the instruction sheet that I received with my new PC board. It includes detailed instructions on how to set the calibration.
Support Link_Tach --- Support - Premium Dash Decals by Mr.Heaterbox