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Philip G.
Will this work on a 392 to run 37's without needing additional drive shaft mods?
Yes, the AEV N0721000AE 2-inch Spacer Suspension System will work on your Wrangler 392 to run 37-inch tires, and it is widely considered the "sweet spot" for a 392 owner who wants to keep the factory-tuned suspension while moving up in tire size.
Because the 392 already sits about 1 inch higher than a standard Rubicon from the factory, this 2-inch spacer kit will put you at a total height that comfortably clears 37s for daily driving and moderate trail use.
Some Notes:
--Standard 392: This kit provides the necessary clearance to run 37s. However, for full off-road articulation (flex), you should ensure you use the bump stop extensions included in the kit to prevent the tires from hitting the painted fender flares.
--392 Xtreme Recon (XR): If your 392 is an XR model, it already has the wider fender flares and slightly taller bump stops, making 37s an even easier fit with this spacer kit.
--This kit includes the ProCal SNAP module. It is vital that you use this to recalibrate your speedometer and shift points. Because the 392 has so much torque and a specifically tuned 8-speed transmission, keeping the computer synced to the actual tire size is crucial for transmission health.
--Shock Extensions: You will use the shock extension brackets included in the kit. This is a major benefit because it allows you to keep the factory-tuned FOX shocks that were specially valved for the weight of the 6.4L V8 engine.
--Wheel Backspacing: To avoid rubbing the frame at full steering lock, you will ideally want wheels with approximately 4.5" to 4.75" of backspacing. If you keep the factory 392 wheels, you may experience very slight rubbing on the front control arms when turning the wheel all the way to the left or right.If you do not want to change the wheels, you will need a wheel spacer.
Because the 392 already sits about 1 inch higher than a standard Rubicon from the factory, this 2-inch spacer kit will put you at a total height that comfortably clears 37s for daily driving and moderate trail use.
Some Notes:
--Standard 392: This kit provides the necessary clearance to run 37s. However, for full off-road articulation (flex), you should ensure you use the bump stop extensions included in the kit to prevent the tires from hitting the painted fender flares.
--392 Xtreme Recon (XR): If your 392 is an XR model, it already has the wider fender flares and slightly taller bump stops, making 37s an even easier fit with this spacer kit.
--This kit includes the ProCal SNAP module. It is vital that you use this to recalibrate your speedometer and shift points. Because the 392 has so much torque and a specifically tuned 8-speed transmission, keeping the computer synced to the actual tire size is crucial for transmission health.
--Shock Extensions: You will use the shock extension brackets included in the kit. This is a major benefit because it allows you to keep the factory-tuned FOX shocks that were specially valved for the weight of the 6.4L V8 engine.
--Wheel Backspacing: To avoid rubbing the frame at full steering lock, you will ideally want wheels with approximately 4.5" to 4.75" of backspacing. If you keep the factory 392 wheels, you may experience very slight rubbing on the front control arms when turning the wheel all the way to the left or right.If you do not want to change the wheels, you will need a wheel spacer.
Craig S.
Will this fit a 21 Rubicon 4xe?
Yes, this can be used with a 4xe.
James E.
What is the actual height of the front and rear spacers?
2" front and rear. Thank you for the question.
Gerald O.
What tire and rim size was used on that Sahara?
35" BFG Tires on a 17x9 Baja Xtreme II Alloy wheel with 4.75" of backspace. Thanks for your inquiry.
Davi V.
Will I gain any ground clearance with this lift or will it just raise the body?
Yes, you will get 2" of clearance, it is lifting the body and frame above the spring.
Darren G.
Will the sway bar disconnect still work the same with the Rubicon models?
Yes that feature will work with this lift kit. .
Azizi R.
ProCal Snap compatible with Right Hand drive models?
Yes, it is.