Driveline modification with lift?
Thread Starter
JK Newbie
Joined: Oct 2009
Posts: 90
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From: Wisconsin
Driveline modification with lift?
I'm looking at a 4" Teraflex lift and keep reading I will need to do a driveline modification and don't know what all is or will need to be involved with this. Any and all advice is appreciated.
Thanks
Thanks
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
That is a 5-6" lift, depending on model and added weight. There are variables involved, but generally, 3-4" is about where you should start worrying about new driveshafts. As stlfan06 mentioned, start with the FAQ's:
https://www.jk-forum.com/forums/modified-jk-tech-2/modified-tech-faq-answers-questions-every-newbie-has-18617/
Both the Suspension and Drivetrain faq's talk about driveshafts. And this bit in the suspension faq is a good one:
Q: What are all the components that I will need with a 4" lift?
And the notes for that lift have the caution right in them, so it shouldn't be any major surprise...
And the install guide:
https://www.jk-forum.com/forums/modified-jk-tech-2/modified-tech-faq-answers-questions-every-newbie-has-18617/
Both the Suspension and Drivetrain faq's talk about driveshafts. And this bit in the suspension faq is a good one:
Q: What are all the components that I will need with a 4" lift?
And the notes for that lift have the caution right in them, so it shouldn't be any major surprise...
Drive shaft modification required for 2 door models and highly recommended for 4 door models.
Driveshaft Notes:
The design of the factory driveshafts is great for highway use and mild off road use, but may not survive the rock contacts and stresses of moderate to extreme off-road use once the vehicle is lifted 3 inches or more. TeraFlex driveshafts and yokes are available separately.
front driveshaft - all Part# 4743200
rear driveshaft - automatic 2door Part# 4744200
rear driveshaft - automatic 4door Part# 4744400
The design of the factory driveshafts is great for highway use and mild off road use, but may not survive the rock contacts and stresses of moderate to extreme off-road use once the vehicle is lifted 3 inches or more. TeraFlex driveshafts and yokes are available separately.
front driveshaft - all Part# 4743200
rear driveshaft - automatic 2door Part# 4744200
rear driveshaft - automatic 4door Part# 4744400
Last edited by nthinuf; Nov 23, 2009 at 08:00 PM.