Dynatrac prorock question
- Thread starter rogerk93
- Start date
ERAUGrad04
Caught the Bug
Unlimited offers 10* of caster/pinion separation as opposed the the factory 6*.
The heavy duty version has the 1/2" wall tubes.
I just ordered an unlimited PR44 with the heavy duty tubes. The extra cost of the two options was minimal and we'll worth it IMHO.
Unlimited is the way to go. Thicker tubes and Increased Castor.
We have all these in stock and can ship Rubicon Models same day. ARB models in 72 hours.
David
We have all these in stock and can ship Rubicon Models same day. ARB models in 72 hours.
David
rogerk93
New member
For both is a few hundred extra and if that's the case it's well worth it.
rogerk93
New member
I don't have the rubicon model, but I do plan on ordering it from you guys when I finally do the upgrade.
ttfhell
New member
To offset a lift.
branman
-
It's not 10 extra, it is 10 total separation versus 6
With 6* of separation if you tilt your Pinion up to bring your driveshaft inline lets say 4* that will only leave you 2* of Castor and that is no bueno. ((6(total)-4(up pinion)=2(Castor))
With 10* of separation in the same scenario (4* up pinion) that will leave you with 6* of Castor - Bueno! ((10(total)-4(up pinion)=6(Castor))
:beer::beer:
rogerk93
New member
I have little knowledge on caster and pinion angle if you don't mind explaining a little more.
Wethy
Member
to my knowledge pinion and castor angle are directly related. castor helps set the angle of your pinion if you have to much castor or too little it will be outside of the pinion tolerances and can cause driveline issues such as premature wear on driveshaft -u-joints/CV joints or vibrations. usually fixed with adjustable control arms. im sure others will chime in with more detailed info than that but its basic idea i think.
for instance a 2 dr jk with 3 inches of lift would roll the bottom of the axle toward the centre of the jeep, and decrease pinion angle( from factory 4.2* to say 2* for example. with adj. lower fronts you can lengthen the lower arms to correct the castor and put the pinion angle back to wear it should be, then replace driveshaft with a non CV style driveshaft and theoretically you shouldnt have any drive line issues.
i think the last part is right. feel freee t correct me if im wrong! im open to criticism
JakeJK
New member
to my knowledge pinion and castor angle are directly related. castor helps set the angle of your pinion if you have to much castor or too little it will be outside of the pinion tolerances and can cause driveline issues such as premature wear on driveshaft -u-joints/CV joints or vibrations. usually fixed with adjustable control arms. im sure others will chime in with more detailed info than that but its basic idea i think.
for instance a 2 dr jk with 3 inches of lift would roll the bottom of the axle toward the centre of the jeep, and decrease pinion angle( from factory 4.2* to say 2* for example. with adj. lower fronts you can lengthen the lower arms to correct the castor and put the pinion angle back to wear it should be, then replace driveshaft with a non CV style driveshaft and theoretically you shouldnt have any drive line issues.
i think the last part is right. feel freee t correct me if im wrong! im open to criticism
So in order to run adjustable lower control arms and correct my caster I need to also get a replacement driveshaft? 2.5 inch lifted 2 door
cozdude
Guy with a Red 2-Door
No you don't. Once you hit 3"+ of lift your driveshaft will be at a state of pinching up by the transfer case and wear the joints out. On a 2 door you need to replace front and rear once you hit this height as they will fail sooner than later
JakeJK
New member
So it's still at a decent height then at 2.5 inches of lift? It won't bind up too bad?
cozdude
Guy with a Red 2-Door
Nope you will be fine. I'm at 2.5" currently and the only reason I have a new front ds is because of my prorock. I'm still running the stock rear but that will change when I get the coilovers on due to the increased droop
JakeJK
New member
Ahh okay sounds good thanks!
rogerk93
New member
to my knowledge pinion and castor angle are directly related. castor helps set the angle of your pinion if you have to much castor or too little it will be outside of the pinion tolerances and can cause driveline issues such as premature wear on driveshaft -u-joints/CV joints or vibrations. usually fixed with adjustable control arms. im sure others will chime in with more detailed info than that but its basic idea i think.
for instance a 2 dr jk with 3 inches of lift would roll the bottom of the axle toward the centre of the jeep, and decrease pinion angle( from factory 4.2* to say 2* for example. with adj. lower fronts you can lengthen the lower arms to correct the castor and put the pinion angle back to wear it should be, then replace driveshaft with a non CV style driveshaft and theoretically you shouldnt have any drive line issues.
i think the last part is right. feel freee t correct me if im wrong! im open to criticism
Makes sense. I plan on doing a evo 4inch long arm so I should be fine.