caltrax or Cal Mathad

5798camaro · 06-16-2010, 05:34 PM

Which is a better system for a 71 duster? What's the cost difference between the two? how hard are they to install each of them ? What is is the advantage to them over regular leafs ? Thanks for your time. Sorrry Cal method

Alan Roehrich · 06-16-2010, 09:28 PM

Cal Mathad? You mean Cal Method?

5798camaro · 06-16-2010, 10:33 PM

Yes thank you

Rod Greene · 06-18-2010, 05:09 PM

Nothing better than Cal Tracs on an A body Mopar.

mike natoli · 06-25-2010, 12:03 PM

I can't answer your question totally only that I have used the S/S springs with very good success just by setting pinion angle, discarding the snubber, and clamping the front segments of the springs with a set of 12 way adhustable QA1s. I run a 30"X9" Hossier radial with 21 psi and usually hooks real well. Weight distrubution @ 50/50. However the spring life lately has been awful so I swithced to the Cal Tracks with split monoleaf springs. The installation was a breeze and the car feels stable on the big end. I did not see any increase in ET but not enough data maybe picked up a little on MPH by getting the tail down. I should mention this is a foot brake car with a 340 30over steel headed coupled to a SELECT converter and 904 with 5.13s. The car has not done big wheel stands since. Hope this helps you in your decsion. I switched to them just because someone like John Calvert has tried to build a better mouse trap.

Jeff Lee · 06-25-2010, 05:18 PM

I've run Tri-City Launcher springs with and without Cal-Tracks and then Cal-Tracks with the split-leaf. By far the Cal-Track bars with the split leaf was the best move for me. You will reduce your leaf spring weight by about half when you go from a multi-leaf spring (especially if you had a stiff / race multi-leaf such as a SS Mopar spring) to a split leaf from Calvert. That weight savings can be placed right back in the trunk where it does the most good.

Tom keedle · 06-25-2010, 05:29 PM

do you know if they'll do a 2" wide split leaf?
(too late in the day to call 'em....(i know they'll do the bars in 2")

Alex Denysenko · 06-25-2010, 08:05 PM

Quote:

Originally Posted by tomslik

do you know if they'll do a 2" wide split leaf?
(too late in the day to call 'em....(i know they'll do the bars in 2")

Yes.

For limited applications.

06-16-2010, 05:34 PM	#1
5798camaro Junior Member Join Date: Mar 2009 Location: Mahtowa MN Posts: 45 Likes: 2 Liked 0 Times in 0 Posts	caltrax or Cal Mathad Which is a better system for a 71 duster? What's the cost difference between the two? how hard are they to install each of them ? What is is the advantage to them over regular leafs ? Thanks for your time. Sorrry Cal method Last edited by 5798camaro; 06-16-2010 at 10:34 PM.

06-16-2010, 09:28 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,066 Likes: 1,487 Liked 1,630 Times in 378 Posts	Re: caltrax or Cal Mathad Cal Mathad? You mean Cal Method? __________________ Alan Roehrich 212A G/S

06-16-2010, 10:33 PM	#3
5798camaro Junior Member Join Date: Mar 2009 Location: Mahtowa MN Posts: 45 Likes: 2 Liked 0 Times in 0 Posts	Re: caltrax or Cal Mathad Yes thank you

06-18-2010, 05:09 PM	#4
Rod Greene Senior Member Join Date: Mar 2002 Location: TN Posts: 530 Likes: 409 Liked 241 Times in 81 Posts	Re: caltrax or Cal Mathad Nothing better than Cal Tracs on an A body Mopar. __________________ Rod Greene Real men shift for them selves. Slowly working on TA Challenger for D,E/S and a 72 Challenger for SS/K, L as if I don't have enough other projects.

06-25-2010, 12:03 PM	#5
mike natoli Member Join Date: Mar 2007 Location: Valley Stream mini Gasoline Alley & Div I Posts: 100 Likes: 25 Liked 51 Times in 16 Posts	Re: caltrax or Cal Mathad I can't answer your question totally only that I have used the S/S springs with very good success just by setting pinion angle, discarding the snubber, and clamping the front segments of the springs with a set of 12 way adhustable QA1s. I run a 30"X9" Hossier radial with 21 psi and usually hooks real well. Weight distrubution @ 50/50. However the spring life lately has been awful so I swithced to the Cal Tracks with split monoleaf springs. The installation was a breeze and the car feels stable on the big end. I did not see any increase in ET but not enough data maybe picked up a little on MPH by getting the tail down. I should mention this is a foot brake car with a 340 30over steel headed coupled to a SELECT converter and 904 with 5.13s. The car has not done big wheel stands since. Hope this helps you in your decsion. I switched to them just because someone like John Calvert has tried to build a better mouse trap.

06-25-2010, 05:18 PM	#6
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: caltrax or Cal Mathad I've run Tri-City Launcher springs with and without Cal-Tracks and then Cal-Tracks with the split-leaf. By far the Cal-Track bars with the split leaf was the best move for me. You will reduce your leaf spring weight by about half when you go from a multi-leaf spring (especially if you had a stiff / race multi-leaf such as a SS Mopar spring) to a split leaf from Calvert. That weight savings can be placed right back in the trunk where it does the most good. __________________ Jeff Lee 7494 D/S '70 AMX

06-25-2010, 05:29 PM	#7
Tom keedle Senior Member Join Date: Dec 2008 Location: Berthoud, Coloraduh Posts: 695 Likes: 13 Liked 8 Times in 7 Posts	Re: caltrax or Cal Mathad do you know if they'll do a 2" wide split leaf? (too late in the day to call 'em....(i know they'll do the bars in 2")