Drive shaft angle after BDS 3 1/2' lift - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Drive shaft angle after BDS 3 1/2' lift

FS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitFlowmaster's Force II Axle-back exhaust system for the 201FS: Wranger BRIGHT License Plate LED! Just $3! Great value

Reply
Unread 09-15-2013, 02:45 PM   #1
jerresredyj
Member
 
jerresredyj's Avatar
1989 YJ Wrangler 
 
Join Date: Dec 2010
Location: loganville, ga
Posts: 143
Drive shaft angle after BDS 3 1/2' lift

I just put a BDS 3 1/2" lift on, front springs all around. 1" lift boomerang shackles front and rear. No TC drop and SYE. I installed 6 deg axle shims as a starting point. I now have 75 deg on the axle and 61 deg on the drive shaft. To get to 3 deg at the pinion joint I need to get rid of 11 deg. I'm needing new motor mounts so I'm thinking MML. Drown Dog has 1", 1.5" and 2". First question is how much shaft angle can I remove with a MML? Second question is for every deg I go up with an axle shim how much will it remove from the pinion to shaft angle?

jerresredyj is offline   Reply With Quote
Unread 09-15-2013, 02:56 PM   #2
acat
Registered User
1990 YJ Wrangler 
 
Join Date: Jun 2006
Location: IOWA
Posts: 369
I run bds 3.5 with booms and 1 inch Mml. I don't recall what angle I ultimately set the pinion but I ended up cutting the perches and rewelding to correct location. The shims that it was gonna require would have been excessively thick and wouldn't allow the spring pins to reach into the axle perches. I'm sure you could buy longer pins but it made more since to do it this way to me. Less trial and error with different degree shims.
acat is offline   Reply With Quote
Unread 09-15-2013, 04:21 PM   #3
Reno72
Senior Member
1992 YJ Wrangler 
 
Join Date: Jan 2013
Location: Cardiff by the Sea - Glamis North, Ca
Posts: 551
I'm running 8 degree with a 4.5 RE lift, no mml. I was told to expect at least 6 degrees. I was running 3 degrees with my old 2" lift so it seems on my jeep about 1.5/1.7 degree shim per inch of lift or minus the same amount for mml or TC drop...if I'm figuring right.
Reno72 is offline   Reply With Quote
Unread 09-15-2013, 04:25 PM   #4
Reno72
Senior Member
1992 YJ Wrangler 
 
Join Date: Jan 2013
Location: Cardiff by the Sea - Glamis North, Ca
Posts: 551
sorry, i meant. I'm running 8 degree with a 4.5 RE lift, no mml. I was told to expect at least 6 degrees. I was running 3 degrees with my old 2" lift so it seems on my jeep about 1.5/1.7 per inch of lift add 1 degree or minus the same amount for mml or TC drop...if I'm figuring right.
Reno72 is offline   Reply With Quote
Unread 09-15-2013, 07:20 PM   #5
jerresredyj
Member
 
jerresredyj's Avatar
1989 YJ Wrangler 
 
Join Date: Dec 2010
Location: loganville, ga
Posts: 143
acat, I'd rather not cut and reweld the perches, I'll save that for when I do an 8.8 swap.

Reno72, do you have a SYE and CV drive shaft?
jerresredyj is offline   Reply With Quote
Unread 09-15-2013, 09:21 PM   #6
Reno72
Senior Member
1992 YJ Wrangler 
 
Join Date: Jan 2013
Location: Cardiff by the Sea - Glamis North, Ca
Posts: 551
Yes AA SYE (not super short shaft) and East County CV driveshaft
Reno72 is offline   Reply With Quote
Unread 09-16-2013, 06:33 AM   #7
jerresredyj
Member
 
jerresredyj's Avatar
1989 YJ Wrangler 
 
Join Date: Dec 2010
Location: loganville, ga
Posts: 143
That's the same SYE I have. I'm mainly looking for how much angle change the MML will give me so I know which one to order.
jerresredyj is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.