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1970 Road Runner. The vehicle has what feels like a driveline type vibration that comes in about 65-66 mph. It turns into an oscillating type vibration around 68mph to about 72 then the oscillation tapers out. About 2800 -3200 engine rpm. I bought the car in 2019 and was a rolling body. It came...

70 Road Runner 383 .060 9.3 compression. Mopar aluminum water pump housing with 8 impeller water pump. 180 degree thermostat. ‘my car originally 22 inch 3 core radiator with a solid fan and shroud. When I put my car together after sitting apart for 27 years. The engine was rebuilt. I installed a...

Has anyone installed Urethane leave spring bushing? Did the vehicle exhibit any vibration through the car, ride harshness other than the dreaded squeak. I can’t remember if I put the bushings in when I owned my car in the 80’s or the owner in between my first and 2nd time owning the car. Thanks

1970 Road runner 383 automatic. Does anyone know if the later 71-72 transmission crossmember and floating transmission mount work on a 70 with the as I call it block style mount.

70 Road Runner 11 inch manual drums at all 4 wheels. I just did rear brakes with drums, shoes , wheel cylinders, springs kit.then I’m doing the fronts next using muscle car front brake shoes.I’m wondering if there is a difference master option without going power brakes. Thanks

My 70 Road Runner I’m doing a front disc brake swap. I found a pair of knuckles and caliper brackets and slides. Seller states to use 73-76 A body rotors or 73-74 E body rotors. 73-76 A body Calipers . Use the E body/ A body inner wheel bearings. Or should I just by a complete kit? That is my...

It’s time for rear brakes on my 70 Road Runner. I’m going to replace shoes, hardware and wheel cylinders. machine the drums.anything special for the shoes? Parts store shoes ok or should I step up for the Muscle car Carbon matrix brakes shoes. My car is street driver not a racer. Thanks

I got my Road Runner manual to power steering conversion finished. Now it’s a leaking disaster. The gear box is leaking between the gear and valve body.i removed the valve body and found a cut oring. I replaced the oring with something I had in a box. Still leaking after replacing. I was...

I did a manual to power steering conversion on my 70 Road Runner. When I bought the car in 2019 it came with the steering box and pump . I found out the steering box is a 73 and up because it has the larger output shaft. I used a 73 B body pitman arm. The 73 pitman arm has curved drop . The...

On quite a few different Mopar forums people have recommended using ScareBird brakes or a least check out there products. They have shut down.

1970 Road Runner. I’m doing a manual to power steering conversion. How much shorter is the steering shaft from the manual to power steering. I’m using a stock coupler. I know I’m gonna probably get crap for not using a Borgenson but their spline is 11/16 36. The steering gear im using is a 5/8...

I’m posting a picture of the mopar flex fan part #. I’m trying to see if it correct for my 70 Road Runner 383 Automatic 22 inch radiator. No a/c no p.s manual brakes. My car did not have a thermal or vicious fan.

im doing a manual to power steering conversion. The steering box I have is a 73 and later B body. I’m missing the fitting /adapter for the pressure hose to connect to the box. I’ve included a picture of my friends 69 R/T for reference. Note it is not pipe thread.

Wanted to say hi to everyone. I’m posting a picture of my 70 Road Runner 383 Automatic. 2nd time owning the car.82-92.2019 to present. It is a late build 70. 7/70. It is a factory FJ6 Sassy Grass green car. Numbers matching engine. Transmission was replaced before I owned the car the first time...

I’m doing a power steering conversion on my 70 Road Runner. I’m using parts that came with the car. The pump I believe maybe from a later vehicle as the pulley is solid not the 3spoke one. But bolts up to the block. The power steering gear is my hum? The old manual box has a 11/16 x36 input with...