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Ford Truck Club Forum > FORD BRONCO | BRONCO II > 1987-1991 Ford Bronco



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  #21  
Old September 25th, 2013, 07:34 PM
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1994 F150 XLT ExCab SB 306, 4R70w, 8.8 3.55 open, MSD StreetFire coil, Taylor Siro Pro wires, MSD cap and rotor, 1.72 Roller Rockers, 2º cam advance w/ Cloyes Street True Roller timing set, Flat top Hyperutectic pistons, Flowtech Long Tube headers, Xpipe, High flow Magnaflow converters, Spintech XL Sportsman DIDO muffler.

  #22  
Old October 2nd, 2013, 12:38 AM
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Ok, I changed out the shift motor and it now engages in 4WD but after moving a couple inches the front tires lock up and start skidding. I took it out of 4WD and it did the same thing until I reversed in 2WD then it drove normally. Any help?
  #23  
Old October 2nd, 2013, 07:24 AM
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I do have smaller tires on front, could that be causing it? I think the front are 255 75 r15 and the backs are 31s
  #24  
Old October 2nd, 2013, 08:54 AM
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tire size could be a problem, but not 100% sure

on my old '82 it was advised to roll backwards about 5 feet after switching back to 2 wheel drive from 4X4


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  #25  
Old October 2nd, 2013, 11:51 AM
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Even with smaller tires on the front, going as far as you did shouldn't cause that, my guess is either Time to change out from Auto to Manual hubs, or check front differential.
  #26  
Old October 3rd, 2013, 10:40 AM
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Do NOT use 4wd with different tire sizes on the front and rear - you WILL bind up the TC and break something. Also make sure someone hasn't changed one of the diffs with a different ratio.

2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS
  #27  
Old April 21st, 2015, 11:18 PM
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WOW! This is an old thread! I have an 88 E/B, and a 93 E/B. 4WD went out on both! I started at the switch making sure it worked. From there the signal is sent to a transfer case control module in the passenger side kick panel. There is a test button on the module and vids on Youtube on how to check it. From there the signal goes to the transfer case motor, which turned out to be the culprit on both my Bronco's. I unplugged the motor and removed the 4 bolts holding it to the case. I took it inside and scribed a line on the outer housing and the aluminum on both ends so that I could put it back together the way it came apart and have everything as it was. I pulled the motor apart and discovered the contacts on the armature were filthy. A bit of electrical contact spray and a Scotchbrite pad cleaned it up like new. I scraped the brushes clean with an exacto knife. You will need to tie the brushes into their pockets so that you can slide the armature back into it's socket. I used grocery bag ties from the vegetable dept of the local grocery store. Line up the scribed lines and bolt er back together. This worked on both my Bronco's and saved me a ton of cash for new motors. Yours is prolly fixed by now, but I thought I'd pass this info on. Brian
  #28  
Old April 22nd, 2015, 06:07 AM
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^^^ good info
Thanks


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BigBlue79 , bikertrash3531 , bmad01 , Booba5185 , Darren Brown , elwray , glc , harrison28 , JSoko , Klitch , Moore1991bronco , Russo2 , Scorekeeper58 , shivey1 , The Frankster , TwoStroke , Tyler.purrington

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