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Is this the additive specified for the 226 RBI (Model 44) in the 2005 Jeep Wrangler Rubicon Owner's Manual, for use with either SAE 80W-90 or SAE 75W-140? Thanks.
No. This additive is not intended for Rubicon models. Thanks for your inquiry.
Is there additive you need for the 2020 Gladiator Rubicon lockers?
No, lockers do not use additives. Friction modifiers can actually damage vacuum and electronic lockers.
Is this the appropriate additive for a Dana 44 with a Vari-Lok LSD?
Yes this will work for the Vari-lok differentials
Is this only for Jeep JK or can you use in a Jeep TJ with Trac-Lok? The other additive brand you have works for Jeep TJ as well? Is there something special for Jeep JK vs TJ?
Yes, this can be used in any axle with Trac-Lok
Does this work in a Jeep TJ Rubicon?
No, this is not to be used with the Rubicon Locker. This is to be used with Trac-Lok Limited Slip Differentials only
is it worth using it at Rubicon 2013, bridges dana 44
No, the Rubicon locker should not be exposed to friction modifier
Do I need this for my 2017 JKU Rubicon?
No
I have cherokee xj 2001(export ) , my front axle dana 30 , rear axle dana .must l use this slip additive both axle or only rear axle ? Second question is what is the differences between 4138060AD and 4138060AB?
This additive is only to be used in axle with Limited Slip Differentials, such as the Trac-Lok that would have been used on Cherokee. If you have a standard differential this is not necessary. The letters at the end usually on refer to internal changes for Mopar and Jeep purposes and do no effect the actual product, usage or formula. If a major change occurs the entire part number changes
will this product work in a 97 zj with the dana 35 with the LSD?
Yes this can be used in Dana 35 LSD axles as well.