4x4 fix
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4x4 fix
hey yal i just bought a 1990 bronco with an automatic trans and a 5.0 the problem is that it has the crappy automatic 4x4 im already changing it to manual i have a donor truck a 95 f150 im already going to put manual hubs on it and the transfercase shifting motor is broke i want to know if i can just hook up my linkage from the manual one to the automatic. i notice a hole in the automatic transfer case where i think the linkage would hook up... what do yal know about this. if i can just change the linkage i will but i can swap the transfercases if its nessesary. tell me what you think ...
thanks
thanks
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It's a litle hard to follow along with you (pics would really help here) but if the hole you are reffering to is in the back of the t-case, thats only for electric shifting (or a speedo hole depending on which case your talking about)
To make the 95 case go into your truck you'll need to:
swap the mainshaft, tailhousing, and rear yoke from your electric case over to the new one (trucks have a slip shaft).
Do the pump arm mod
grab the short electric harness that feeds the indicator lights from the donor vehicle.
Get all the shift linkage from the donor vehicle (transmissions have to be the same for it to be compatible)
You "may" have to drill new holes around the access hole in the floor to hold down the shifter boot/bezel. The older ones had 1 hole on each side of the square and the newer ones have 2 holes on the driver/passanger sides.
Don't try to mix 87-91 linkage with 92-96 transfercases or vis versa. The shifter arm at the transfercase on the 87-91 cases is located at 10 O'clock in 2WD and the 92-96 cases points at 12 O' clock in 2WD. They won't work toghether without alot of mods and headches......trust me on this
To make the 95 case go into your truck you'll need to:
swap the mainshaft, tailhousing, and rear yoke from your electric case over to the new one (trucks have a slip shaft).
Do the pump arm mod
grab the short electric harness that feeds the indicator lights from the donor vehicle.
Get all the shift linkage from the donor vehicle (transmissions have to be the same for it to be compatible)
You "may" have to drill new holes around the access hole in the floor to hold down the shifter boot/bezel. The older ones had 1 hole on each side of the square and the newer ones have 2 holes on the driver/passanger sides.
Don't try to mix 87-91 linkage with 92-96 transfercases or vis versa. The shifter arm at the transfercase on the 87-91 cases is located at 10 O'clock in 2WD and the 92-96 cases points at 12 O' clock in 2WD. They won't work toghether without alot of mods and headches......trust me on this
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I wouldn't say most, but it is a viable solution. He has a complete donor setup though so why not use it? Regardless of electric/manual/shiftster shifted, you need to crack these cases open and do the pump arm mod BEFORE it spins. It's so easy to rebuild these cases that there is really no excuse for not ding a full rebuild anytime your going to have it out.
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There is a channel in the front half of these cases that the arm of the pump resides in. This groove holds the pump stationary and keeps it from spinning with the mainshaft. The pump arm is a narrow piece of steel and the case wall is made out of magnessium. After about 100,000 miles, the arm eats its way through this stop and the whole pump spins around in there jaming the case case up and often busting the aluminum shift forks. It also eats up the bearings pretty fast since your no longer etting sufficient lubrication from the pump. he fix is simply to add a piece of 3/16" rod or a piece of allen wrench or similar to the end of the pump arm, so that you increase its contact surface on the side of the case. You don't have to worry about repairing the wear on the case when you do this, and it will a very long time.
Here is a old writeup done on a pickup, with good pictures of the pump arm mod. Look towards the end of the writeup as this guy tried something else at first nd then took it all back apart to do the recomended repair.
Rebuild your own transfer case. BW1356 - FSB Forums
Do both your trucks have the same transmission?
Here is a old writeup done on a pickup, with good pictures of the pump arm mod. Look towards the end of the writeup as this guy tried something else at first nd then took it all back apart to do the recomended repair.
Rebuild your own transfer case. BW1356 - FSB Forums
Do both your trucks have the same transmission?
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Ok cool thanks for the info and yes they are the same its a 95 f150 with automatic trans thats my parts truck
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ive got bad news the transfer case from the f150 has a longer tail shaft and everything than the bronco is there any way i can hook up linkage from the manual to the automatic cause the automatic one has a hole where the linkage can go in
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You need to swap the mainshaft and tailhousing from your old t-case to the new one from the donor f150. It's very easy to do, there isn't much going on inside these cases. While your in there do the pump arm mod I mentioned earlier, and you'll probably never have to mess with the t-case again.
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I'm not sure what you mean by "automatic", but if you mean can you put the manual-shift linkage onto a push-button case, no. Your gonna have to swap your Bronco mainshaft and tailhousing along with the speedometer stuff onto the F150 case and put that into your rig. All this can be done in six hours taking your time. I could probably do it in two hours at this point (just as a reference)
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No it won't work. You would have to drill and grind holes at very tight tolerances to create a place for the linkage to reside, and you would probably end up ruining the case. If your willing to take the entire case back apart, why not swap the good internals into the manual case?
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