I run the spit mono's with Cal-Tracs, and like Dustin, I drive mine on the street regularly. If you back all preload out of the Cal-Tracs, the split mono's then actually act very nice on the street. I agree with Dustin that the aluminum bushings are probobly the biggest part of any change you feel. I noted that they also transfer much more sound into the chassis than rubber bushings do....

To the O.P.: Might as well try them with the XHD's. Calvert told me that the Split Mono's don't really pay off big until performance gets near the 10 second zone.

Ok, I know that mono leafs are what is recommended but I am planning on running the XHD springs so does anyone have a part number or the needed lengths that I will need for a 68 b-body? Thanks Tim

When running Caltracs the split mono's are recommended. Seems like more people have better results & consistancy with running the mono's. I have the Caltracs/ -1" split monos' & the caltrac shocks on my Challenger. I haven't tested it yet. Still in the building process. The trick is running a very loose front end for transfer.

Even with the -1 springs & the 315's on I still will probably make it sit a little lower. Won't know until I get the driver train & eveything else installed to get the correct ride height.

One of the caltracs mounted.

I would certainly try the caltracs with the xhd springs. I run stock springs and a pinion snubber with some clamps on the front of one segment and some on the back of the other side segments. Mine hooks great with 275-60 mt e.t. street radials. 1.49 60' dead hook off the foot brake with a 5000 8" converter. Long front shocks made mine hook awsome!

i have the XHD springs in my 68 Satellite with the Caltracs,1.53 60' is my best off the footbrake.i have the rancho rear shock set to #9 on the strip #4 or 5 on the street rides fine.i did fit their aluminium front bush. qa1 on front set full loose at the strip.though i do have small block front bars

Tex

Wow! This has been a good topic afterall! I didn't think there would be all of these responses from my original post. Well, a good update here... the caltracs are now on my car, as well as some other goodies... I was able to take out my car for a little spin around the block to see if I could feel any noticable difference and quite honestly, I didn't. Mind you, they were not loaded, nor did I take it for a hard launch.... just drove it for about 5 minutes. I'm getting anxious for warm weather and a trip to the track to get these dialed in.

For those who are wondering how hard it was installing them, it is VERY easy to do!!!! Took me about 5-6 hours and had a fun time doing so. Soooo here's some pics of whats been done... enjoy!

Dave

...another...

and how about one last one.... oh, that's right, I also installed in an 8 point roll bar purchased from S&W. Excellent piece from them.

Dave

looks nice Dave,
by the way i leave mine preloaded at all times

Tex

Nice
I've just bought a 67 R/T, just waiting for it to be shipped.
I just run SS springs and 9way ranchos on my Dart.
Mick

I'm going to have to post of pic of my 67 tomorrow. I also have caltracs going in with 325/50/15 MT's on stock widened rims.

I run a dearched SS spring with clamps on the rear section of each spring,Caltracs and a Competition Engineering shocks. With a 9 inch slick car 60s 1.45 to 1.46 range.

Here's the pics.
I'm still putting mine together.

My car is a Coronet 500 with the Coronet 440 tail panel.