Posts Tagged ‘MML’

Long Term Product Review:JKS Manufacturing TJ Motor Mount Lift

For most of us TJ owners if you want to gain a better break over angle you need to upgrade to a tucked transfer case skid.  Adding this type of skid alone  will have side effects like no room for the transfer case to move up.  Then we need to add a body lift which makes room for the transfer case, now our engine sits a 1″ or so too low not lining up the fan to the radiator etc…

So now your in the market for a  motor mount lift or (MML) to re-align your drive train closer to stock.  There are several choices out there from replacing the motor mounts to adding a spacer below the factory motor mounts.  This is where Jks Manufacturing comes in by doing  just that by adding an aluminum 1″ spacer below your factory motor mounts.  By doing a spacer you retain factory OE mounts which have far less vibration that some of the alternatives.
Our long term test started in 2005 when I need a way to move the transfer case up.  Lets look at the five years of moderate wheeling with 37′s.
Part Type:1″MML
Part #:PN 8100
Manufacture:Jks Manufacturing
Length of test:5 years
Miles tested:91,500 miles
Test Vehicle:2005 Jeep Wrangler Unlimited (LJ)
Drive train:Stock 4.0 auto trans
Tire Size:37″ BFG
Lift:3″ AEV/Nth/1″ Day Star body lift
Test Results:Moderate wheeling adapter bolt(s) snapped at 92K mies
Recommendation:Strengthen Adapter bolt from grade 5 to grade 8
Product Durability (1-5):4
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