Axle shims
#1
Newbie
Thread Starter
Join Date: Apr 2009
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Axle shims
Can axle shims take the place of a CV driveshaft and/or SYE at say 3-4.5 inches of lift? Seems a lot cheaper to just do shims. What are the drawbacks to using them? Thanks
#3
Newbie
Thread Starter
Join Date: Apr 2009
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
I know none of us can read minds, but why would anybody spend hundreds of dollars to do SYE and CV if all you need to do is add shims? I would think this also only works on the rear axle. Is that correct?
#4
CF Veteran
Join Date: Nov 2008
Location: Oak Harbor, WA.
Posts: 6,989
Likes: 0
Received 4 Likes
on
4 Posts
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Well to get rid of all your vibes, you will need to do the axle shims and a TC cross member 1" drop. A lot of guys don't like to do the TC drop because they say it defeats the purpose of lifting your rig....which it does to an extent. I'm lifted 6" with 33s and a 1.25" TC drop and it hasn't limited my off road ability at all. Honestly though, I too, am currently putting together the parts to install a HB SYE on my XJ.
#5
Seasoned Member
Join Date: Apr 2009
Location: MI
Posts: 425
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0L
#6
Senior Member
Join Date: Sep 2008
Location: Nashville, TN
Posts: 688
Likes: 0
Received 1 Like
on
1 Post
Year: 2000
Model: Cherokee
Engine: 4.0L HO
shims are used to correct the pinion angle on your rear axle (or front). for a sye, the pinion needs to be pointed up, about 1 or 2 degrees below the driveshaft angle. If you run the stock slip yoke/driveshaft, your pinion should be pointed nearly straight forward, same as the output shaft on the transfercase. The slip on the stock shaft does not have much play in it. Flexing out could cause it to put pressure on your TC when it is extended out. Those seals can leak from this as well.
You are just better off getting an sye when you lift, also you are upping the strength of your output shaft if you get a HD one. Some allow you to run the same driveshaft front and rear, so you only need to carry 1 spare. Changing a U-joint is a lot easier with a SYE as well since it is easy to just unbolt the shaft.
You are just better off getting an sye when you lift, also you are upping the strength of your output shaft if you get a HD one. Some allow you to run the same driveshaft front and rear, so you only need to carry 1 spare. Changing a U-joint is a lot easier with a SYE as well since it is easy to just unbolt the shaft.
#7
CF Veteran
Join Date: Nov 2008
Location: Paso Robles Ca
Posts: 2,473
Likes: 0
Received 9 Likes
on
9 Posts
Year: 1991
Model: Cherokee
Engine: 4.0
no shims will not replace a SYE
yes you can use them but you need to remember to keep proper drive line geometry
so you cant just shim up the pinion arbitrarily yes it will fix binding but not harmonic vibrations witch some of you may not even know you have because of tire vibe masking it
yes you can use them but you need to remember to keep proper drive line geometry
so you cant just shim up the pinion arbitrarily yes it will fix binding but not harmonic vibrations witch some of you may not even know you have because of tire vibe masking it
Trending Topics
#10
CV Driveshaft and shims
I have a 3.5" Rubicon Express lift on my XJ and am about to install a SYE and CV driveshaft. What angle shims do I need to put in the rear and what should the geometry be, pinion straight with shaft, or slightly below?
Thanks,
Tyler
Thanks,
Tyler
#14
I have one set of the RE shims, I believe they are 2.5 degrees, do you think they will do the trick, or will I need more for the 3.5" lift? I will also have to get new U-Bolts since they are torqued, correct? And one last question, you are awesome by the way, what is the proper torque amount for the rear U-Bolts on those Cherokees?
Thanks so much!
Tyler
Thanks so much!
Tyler
Thread
Thread Starter
Forum
Replies
Last Post
NM-XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
10-23-2018 04:21 PM
RWKHausSupply
Vendor Showcase
1
10-22-2015 01:11 PM
64dodge
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
09-30-2015 05:50 PM
Ibanezz
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
24
09-10-2015 07:15 PM
mach3lude
Modified XJ Cherokee Tech
17
09-10-2015 02:34 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)