67 Coronet Rear Leafs

[msarni1]

I have a 67 Coronet R/T with the original leaf springs. I want a little lift out of the rear of the car, any one have any suggestions of what to do?

 

[Cranky]

Are they weak and have flattened out? I know a lot of people don't like air shocks but they work well if you don't go nuts with them. I like 1" over stock in most cases and have never had any problems with that over my life time. You can also add a leaf or buy new ones. Most spring shops can do that to get what you want if you can't.... .

 

[1badstroker]

You can also use an overload shock. It has a spring over it ti increase the load and that should give you an inch or so. Like cranky said you can also go airshocks. Good luck either way.

 

[mopar6976]

Superstock springs will work too.

 

[snakeoil24]

The shock tower in these cars where not meant to use lift shocks. new springs are needed.

 

[Cranky]

The shock tower in these cars where not meant to use lift shocks. new springs are needed.

Name a car that was meant to use them but look at how many did it back in the day and still do.

On the SS springs, the right side has an extra leaf added in and are generally meant for drag racing. They will usually raise your car 1-2" and most I've seen ended up being at least 2" higher but it also will depend on the rate you get. Problem with these springs is that they will raise the right side more than the left...also, they are built using the 'A' body length so you will have to also buy the extended front hanger to mount them on a B body. There are several spring companies that offer stock and heavy duty springs with ESPO being one of them.....

 

[generaljmwlee]

there is a local company close to me that do nothing but springs they were able to rearch mine and rebuild them with new pads and clamps , able to keep the orig springs for my car.

 

[Meep-Meep]

Either get them re arched or I think you can just buy new repo ones from MoPar. Another thing you can do is add an extra main leaf yourself from a truck or another car that has some arch to it. I did this on my 68 Mustang. I found a 1/2 ton Ford truck and got the really thick overload leaf and bolted it in with longer U bolts. My car wasn't sagging, but rather needed some extra capacity for back seat passengers. I'd stay away from the air shocks or anything that transfers load to the shock mounts. Sure it will work for a while but at some point you will break the welds that hold the shock cross member to the sub frame.

 

[Cranky]

Yup, all of my cars broke the welds.....not saying it can't happen but how many have actually broke their upper shock mounts? Shocks with 10-15 psi ain't going to do it and if it does, they were weak to begin with and shocks with 10-15 psi will give ya that inch or so.

 

[Meep-Meep]

Yup, all of my cars broke the welds.....not saying it can't happen but how many have actually broke their upper shock mounts? Shocks with 10-15 psi ain't going to do it and if it does, they were weak to begin with and shocks with 10-15 psi will give ya that inch or so.

I have seen several B bodies with the entire shock mount cross member detached from the car - my red 69 included. If memory serves it's only held in place by 4 welds at the extreme ends and I suppose it depends on who was welding that day.

 

[67500383]

When I repalaced all the bushings under my Coronet I got new poly adjustable rear shackles. It has 3 adjustment, the top choice drops it 1 inch, the middle is factory setting and the bottom raises it 1 1/2".

 

[four40cuda]

I just put new leaf springs on my 67 R/T. I went with XHD spring from Mancini. I have S/S on my Cuda and they work great but are a little too stiff for every day driving,IMO. Wes from Mancini said the XHD are similar to the 4 speed springs that were factory on my car.

 

[snakeoil24]

Name a car that was meant to use them but look at how many did it back in the day and still do.

On the SS springs, the right side has an extra leaf added in and are generally meant for drag racing. They will usually raise your car 1-2" and most I've seen ended up being at least 2" higher but it also will depend on the rate you get. Problem with these springs is that they will raise the right side more than the left...also, they are built using the 'A' body length so you will have to also buy the extended front hanger to mount them on a B body. There are several spring companies that offer stock and heavy duty springs with ESPO being one of them.....

I remember using air shock but the welds are not 45 years old now.

 

[BelvedereII]

XHD springs didn't raise my '67 Belvedere over the original (318 V8) springs, and a proper set of S/S springs gave about the same height when mounted in the upper holes then maybe 1" higher when in the lower mounting holes. My car also sat with the front end lower on the driver's side so I swapped one and got two right-hand side leaf springs. Turned out, the torsion bars were mis-adjusted. I left the two right side springs on the car, somewhere out there should be a pair of lighter left side springs for someone!

 

[Cranky]

I remember using air shock but the welds are not 45 years old now.

Well, if you don't trust those welds, maybe you should check out the rest of the car. I ran them on my 66 up until about 10 years ago when I tore the whole car down....