ShadowsPapa
Well-Known Member
- First Name
- Bill
- Joined
- Oct 12, 2019
- Threads
- 247
- Messages
- 40,483
- Reaction score
- 53,968
- Location
- Runnells, Iowa
- Vehicle(s)
- '25 JTMX, '23 JLU 4xe, '82 SX4, '73 Javelin
- Occupation
- Retired auto mechanic, frmr gov't ntwrk security admin
- Vehicle Showcase
- 3
Once the truck was back on the ground with the bolts tightened only to the point of making contact, I situated a wrench on the nut and placed a bar for it to hit to stop it from turning and then stood by the truck with my torque wrench and an extension long enough to get to the bolt but clear the truck's body. Wasn't bad that way. At least for the rear lower arm bolts........ some of the others, not quite as fun.I used the Mopar lift specs which reuse factory hardware but have higher specs than the factory. There's a couple in there that are 190 and 200 ft-lb that were insane to hit even with a 24" torque wrench. Had to have my wife hold the wrench on the backside because I couldn't hit it one handed on the ground.
One of these days I'm just going to do a large Fastenal order and get a full set of flange nuts and bolts and do it all with loctite. I'll carry a few extra nyloc in case I need to pull one loose on trail or something.
I wanted to see how the lift kit specs compared to the factory specs - I set it to the 190 when I installed the longer lift kit lower arms a few months ago.
What I found is basically what I suspected based on experience torqueing some pretty hefty things over the years - the 190 spec'd for the lower control arms and the 110 for the front track bar as listed in the mopar lift kit spec sheet is actually lower than if you did the full factory torque plus angle.
This time when swapping back, I used the factory spec torque plus angle.
I literally had to use a cheater on a breaker bar to meet the full 103 + 145°
As a test, I then set my 250 lb/ft wrench to 205 (the spec is 190 in that lift kit sheet for LCAs) and it clicked well before anything turned.
Same for the track bar - the bar bolt specs on the MOPAR lift kit sheet is a measly 110 - pretty lame, IMO.
The factory spec for the front track bar is 52 plus 115° for the frame bolt and
I also found the track bar's 110 was easier to achieve than the factory 52 plus 115° for the track bar frame bolt and 52 plus 155° for the track bar to axle bolt.
If I set my torque wrench to 120 and try those bolts, it clicks and they don't move - showing they are tighter with the factory spec than the lift kit spec.
I'm suspecting that they understand most who install lift kits won't be using torque plus angle, and may have trouble meeting the factory spec...... or, that spec sheet is taking legacy numbers and wasn't updated in the last 3 years.
But here's my finding -
If I use the 190 from the lift kit sheet for the LCA and then set the torque wrench up 10 I can turn the bolt farther before it clicks.
If I use the torque plus angle for the LCA bolts, I can set my wrench up to over 200 and it will click before a bolt turns.
Same for the track bar......... using the factory torque plus angle my wrench clicks way before a bolt would move.
The factory specs even have the track bar to axle bolt quite a bit higher/tighter than the track bar to frame bolt spec by 40 degrees.
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