88 Bronco Overdrive Question
Posting Guru
Joined: Apr 2006
Posts: 1,274
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Very intreasting Number Dummy,
So what is actually happening when its clunking? How long could you drive it once it gets to that point? In the case of mine, I rebuilt my trans myself at some point. I dont remember how long I drove it like that. When I rebuilt it, the only thing I found was the first gear clutches were all ground up. I have to admit I didnt know what I was doing at the time. I just replaced the junk they gave me in the kit. Wasnt hard. It worked good after I was done. But I always shifted OD only when I wanted it. I believed that the first gear went out because I had 35" tires and hadnt changed the gears in the diff.
So what is actually happening when its clunking? How long could you drive it once it gets to that point? In the case of mine, I rebuilt my trans myself at some point. I dont remember how long I drove it like that. When I rebuilt it, the only thing I found was the first gear clutches were all ground up. I have to admit I didnt know what I was doing at the time. I just replaced the junk they gave me in the kit. Wasnt hard. It worked good after I was done. But I always shifted OD only when I wanted it. I believed that the first gear went out because I had 35" tires and hadnt changed the gears in the diff.
Posting Guru
Joined: May 2007
Posts: 1,208
Likes: 2
From: North Reading Mass
I had an 83 302 with the AOD and it was trouble free for 220k miles. Trans fluid was changed every 30k and an aux cooler did help. Never noticed a clunk but like others I would keep it out of O/D in town. Truck probably hauled my 4500lb travel trailer over 15k miles without issues. More durable than my TH700R4 was.
YMMV
rikard
YMMV
rikard
Posting Guru
Joined: Oct 2005
Posts: 1,017
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From: Longwood, Fl
???
Much as I believe ND, I cant go along with all that about AOD's. Certainly in the beginning, probably all are bad. Sure not my experience and I put em up wet!! No offense ND!! Maybe you were in a chebby shop disguised with ford signs---for credibility 
Fleet Mechanic
Joined: Jan 2005
Posts: 1,413
Likes: 14
From: cape may county NJ
My 86 f-150 has 190,000 on it and at a 110.000 miles I had the trans serviced and had a shift kit installed it has always had the hard shift to and from OD when driving to slow(thats how I know I didn't put it in drive) and its still going strong,as others have stated just make sure you use overdrive when your on a highway above 50mph and you will be good.
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Transam461
1987 - 1996 F150 & Larger F-Series Trucks
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Sep 10, 2016 12:58 PM
