Stroker Crushed and Ripped my Spring Perches
Thread Starter
5th Gear Member
Joined: Apr 2007
Posts: 2,100
From: Texas Hill Country
I will look into a panhard bar or watts link and read up on them.
I have a Ford 9" rearend with 31 spline Moser axles and a bad ars factory limited slip. The PO put them in and I have never changed them out. It will haze the tires a little on a launch and the marks are perfectly straight and the same length. The leaf springs, traction bars, and MT Sportsman tires do not allow for much slippage, so the axle just tries to rotate. This is good and bad. It means I am planting mas power but it also means that the stock stuff is starting to break.
I have a Ford 9" rearend with 31 spline Moser axles and a bad ars factory limited slip. The PO put them in and I have never changed them out. It will haze the tires a little on a launch and the marks are perfectly straight and the same length. The leaf springs, traction bars, and MT Sportsman tires do not allow for much slippage, so the axle just tries to rotate. This is good and bad. It means I am planting mas power but it also means that the stock stuff is starting to break.
6th Gear Member
Joined: Oct 2006
Posts: 8,162
From:
Both a panhard bar and watts link keep the axle centered but it can still move up and down but not left and right.Panhard bar is good for drag racing a watts link is better for road racing.Only downside is the exhaust out the back might be a little tricky to pull off.
6th Gear Member
Joined: Feb 2007
Posts: 7,635
From: state of confusion
I don't know offhand what your traction bars look like or how they attach, but if they attach either using the leaf spring U-bolts or clamp directly to the leaves, the axle torque reaction load goes through the leaf spring perches. In that case, the perches need reinforcement since it is now known that the perch is the weak link in that load path. If you're going to keep the leaves, anyway.
Norm
Norm
Last edited by Norm Peterson; Nov 12, 2008 at 04:20 PM. Reason: LJ text
4th Gear Member
Joined: Sep 2008
Posts: 1,839
From: Connecticut
CPR is right on target. I have a Currie 9 inch in my '66. In addition to much beefier perches, they are completely welded to the tube, and use 3" axle tubes. Compare the after market perches to your stock perch and you will see a huge difference.
5th Gear Member
Joined: Jun 2005
Posts: 3,315
From: San Diego, CA
please for the love of god tell me that they came out with a stroker kit for a 351 that makes it 383 and you dont have a chevy in that mach
please?
anyways, that sucks, hope you get that fixed, sounds like your making some good power
please?
anyways, that sucks, hope you get that fixed, sounds like your making some good power
5th Gear Member
Joined: Sep 2005
Posts: 2,505
From: Wasilla, Alaska
LOL! Welcome to the club. You'll be replacing parts every time you go out if you drive like me. My Cal Tracs didn't stop my perches from rolling, nothing will until you replace them with beefier ones or box them in like I did after I replaced mine. When my perches rolled it broke my third member. I too did this on a rolling start. I never juiced it off the line because I was paranoid as well.