caltracs and mono springs

Mopar69 · 08-01-2011, 01:19 AM

Hey everyone new to the site. I have a problem my mono spring dowl pin that lines up the rear end to the spring. when I put the dowl on the center hole on the spring pad on the rear end it moves my tire forward and it almost touches the wheel well if I move the rear end to the forward hole on the spring pad everything seems good everything is even.Im just wondering what problems might come from moving it forward in this position. I called calvert and everything they sent was right on they cant even figure out why it doesnt line up on the center hole on the spring pad my front hanger is in the stock position and stock hanger for a 22" leaf spring. I had ss springs on it before and couldnt hook up. I guess I should have put my combo first. 69 charger 426 hemi 4 speed mcleod soft loc clutch dana 60 4.10 locker M/T 28 10.5 15 slicks.Anyone have this problem on a dodge b body. Thanks

Phillip marvetz · 08-01-2011, 01:46 AM

I would think the spring hanger has been changed. Mancini racing sells them in different lenght.

Dinsdale · 08-01-2011, 01:54 AM

Interesting that your spring pads have 2 holes but I'm a Ford guy so know nothing about Mopar rear ends. What you are describing isn't unusual and I'm suprised Calvert didn't have an answer. I went through similar with my Mustang and ended up making a new spring pad hole.

The problem is a mono spring needs more arch to make the car sit as original. As you curve the spring you are also moving the housing forward. The Calvert springs use the back section to get ride height. It's also possible the centering pin is not in the same location relative to the front spring eye. It's tough to get an accurate measurement because the springs aren't flat but see if you can and compare the two. I know I had my housing in and out too may times trying to get the rear centered and the height I needed. If it fits well with the front spring pad holes I see no downside.

Jim Wahl · 08-01-2011, 02:41 AM

Some Chrysler pads come with two or three adjustment holes. This is not uncommon. Check to see that both front spring bolt mounting points measure the same and check the wheelbase numbers. You should be good to go. Jim

Mopar69 · 08-01-2011, 12:32 PM

I bought new spring hangers from mancini racing to go along with the caltracs and everything is correct. I did measure wheel base stock is 117 and mine is 117.5 I just dont know if putting it in the front hole effect pinion angle and i dont have the tool to know. Thanks

Phillip marvetz · 08-01-2011, 10:36 PM

You can also redrill the centering pin hole in the spring and move it to where you need it.

08-01-2011, 01:19 AM	#1
Mopar69 Junior Member Join Date: Jul 2011 Posts: 4 Likes: 0 Liked 0 Times in 0 Posts	caltracs and mono springs Hey everyone new to the site. I have a problem my mono spring dowl pin that lines up the rear end to the spring. when I put the dowl on the center hole on the spring pad on the rear end it moves my tire forward and it almost touches the wheel well if I move the rear end to the forward hole on the spring pad everything seems good everything is even.Im just wondering what problems might come from moving it forward in this position. I called calvert and everything they sent was right on they cant even figure out why it doesnt line up on the center hole on the spring pad my front hanger is in the stock position and stock hanger for a 22" leaf spring. I had ss springs on it before and couldnt hook up. I guess I should have put my combo first. 69 charger 426 hemi 4 speed mcleod soft loc clutch dana 60 4.10 locker M/T 28 10.5 15 slicks.Anyone have this problem on a dodge b body. Thanks

08-01-2011, 01:46 AM	#2
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: caltracs and mono springs I would think the spring hanger has been changed. Mancini racing sells them in different lenght. __________________ 2009 V/SA Record Holder

08-01-2011, 01:54 AM	#3
Dinsdale Member Join Date: Oct 2004 Location: Canada Posts: 313 Likes: 0 Liked 6 Times in 2 Posts	Re: caltracs and mono springs Interesting that your spring pads have 2 holes but I'm a Ford guy so know nothing about Mopar rear ends. What you are describing isn't unusual and I'm suprised Calvert didn't have an answer. I went through similar with my Mustang and ended up making a new spring pad hole. The problem is a mono spring needs more arch to make the car sit as original. As you curve the spring you are also moving the housing forward. The Calvert springs use the back section to get ride height. It's also possible the centering pin is not in the same location relative to the front spring eye. It's tough to get an accurate measurement because the springs aren't flat but see if you can and compare the two. I know I had my housing in and out too may times trying to get the rear centered and the height I needed. If it fits well with the front spring pad holes I see no downside. __________________ Dale Posnick

08-01-2011, 02:41 AM	#4
Jim Wahl Veteran Member Join Date: Jan 2002 Location: Central Florida Posts: 5,844 Likes: 666 Liked 683 Times in 129 Posts	Re: caltracs and mono springs Some Chrysler pads come with two or three adjustment holes. This is not uncommon. Check to see that both front spring bolt mounting points measure the same and check the wheelbase numbers. You should be good to go. Jim __________________ Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 NHRA D2 National Open Stock Champion 1982 NHRA D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association.

08-01-2011, 12:32 PM	#5
Mopar69 Junior Member Join Date: Jul 2011 Posts: 4 Likes: 0 Liked 0 Times in 0 Posts	Re: caltracs and mono springs I bought new spring hangers from mancini racing to go along with the caltracs and everything is correct. I did measure wheel base stock is 117 and mine is 117.5 I just dont know if putting it in the front hole effect pinion angle and i dont have the tool to know. Thanks

08-01-2011, 10:36 PM	#6
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: caltracs and mono springs You can also redrill the centering pin hole in the spring and move it to where you need it. __________________ 2009 V/SA Record Holder