Author Topic: Flat towing with automatic locking hubs  (Read 407 times)

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watb21

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Flat towing with automatic locking hubs
« on: Sep 05, 2018, 12:57:14 PM »
I have an 86 4runner (5 speed) with automatic locking hubs up front.  I plan to flat tow it behind my RV.  I may do a SAS in the future but is there any problem with flat towing with automatic locking hubs or should I buy manual locking hubs?  I know I need to drop the rear drive line while flat towing but any other advice would be appreciated.

Snowtoy

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Re: Flat towing with automatic locking hubs
« Reply #1 on: Sep 05, 2018, 02:47:10 PM »
Flat towing shouldn't be an issue, the auto hubs only engage when they receive power from the axles, otherwise they should be free, just like disengaged manual hubs.

For trail use it is best to swap to locking hubs, by design the auto hubs disengage momentarily before reengaging,also, it appears that the auto's have issues with wear or poor maintenance.
Write up for replacing the auto hubs w/manuals.

Also, with flat towing, you will want to remove the drive shaft from the rear diff and hang it up, the trans doesn't lube itself with just the drive line spinning.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

watb21 [OP]

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Re: Flat towing with automatic locking hubs
« Reply #2 on: Sep 05, 2018, 10:01:15 PM »
Thanks!  Iíll check out the link!

OOPS

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Re: Flat towing with automatic locking hubs
« Reply #3 on: Sep 06, 2018, 05:11:18 PM »
If you replace only use Asian hubs, all others are junk on Toyota's!!
David & Theresa Fritzsche, 1990 Ex-Cab with a few mods!!!!!!!!! Roseville, CA Sobriety =Serenity

 
 
 
 
 

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