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05-15-2006, 06:33 PM
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Chrysler mini-van trans
I need to help my nephew out of a bind. He has a mini van that broke the trans. I have never worked on one but understand it's a comon problem for them to break....
What kind of price is he looking at for the parts and up dates to repair it. I am going to do the labor for free to help him out.. Also what special tools does this transmission take??? I have all the spring compressers, bushing drivers etc.... Keith 
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05-15-2006, 08:03 PM
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Overdrive?
Three speed? Year, make, model, engine, size? What happened to the trans in it? More info, Please
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05-15-2006, 11:52 PM
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I'm with Chaz, more info and we will do our best!
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05-16-2006, 05:40 AM
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trans
It is a 97... But it just had a junk yard trans installed about 6 months ago, and i don't know what year the trans is...
I talk to a buddy that works for a dealer last night after i posted this and he said that they had a problem in the late 90's with the pinion shafts breaking... I am thinking this might be the deal because my nephew told me the thing is locked up... I am sorry i don't have all the needed info because it's not at my shop yet...I was under the impression they all used the same transmission???? were there different transmissions????? keith
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05-16-2006, 07:28 AM
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it has the option of having either a 3 speed A670 or a O.D. A604. easiest way to tell is if there is a big harness that hooks up to the trans underneath the air intake assembly. that'll be the 604. if not, its the 670
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05-16-2006, 07:50 AM
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Chrysler had real problems with the 4 spd overdrive transmissions,we've replaced many of them in our shop,most of them go after 100,000 miles or so.
If you buy a used one you are probably getting into more problems,have yours rebuilt and tested professionally,or exchange for a rebuilt,also the torque converters on these trannys were known to push forward under hydraulic pressure and take out the thrust bearings in the 3 litre engines,another reason to get a rebuild. Check out chryslers website,I beleive they have service bulletins and info on the problems there,we get them in the mail,being a dealership. The three spd is a much better tranny,but you will not get as good a mileage as the o/d.
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05-16-2006, 07:00 PM
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mini van
never heard of the converter causing thrust bearing failure,this debate has been going on for years. 604 is a good unit when built correct I hated them when they first appeared in my shop only because I didn't under stand the way they worked.
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05-16-2006, 09:46 PM
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Quote:
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05-17-2006, 05:59 AM
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trans
I got it out last night and it's DOA.... it broke the pinion shaft and destroyed the case... I am going to take a chance on a unit from a yard... I am out of time and need to get it back on the road asap....
Keith
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05-17-2006, 02:34 PM
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mini van
I couldn't guess how many of these I've built, never had 1 with broken pinon shaft I have seen the pin fly out of the carrier and break the case. but guess I have been lucky. hope the next 1 is better for this car
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05-17-2006, 05:01 PM
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my dad had the pinion shaft retainer break, and the shaft slid out and rubbed a hole in the trans case drove it home like this, which was probably 40 miles, he pulled it apart and had a tranny shop fix the pinion shaft and he epoxied the hole shut. this was years ago with his '85 Mercury Lynx, whail he was pulling his 14' boat. car still worked after, 1 fire, more than a few deer collisions later ( never repaired after any ), duct tape, epoxy and superglue, and a few years, it was traded in on a brand new truck, which was a '93 Nissan Hardbody 4cyl, 5spd and pulled our 23' aluminum boat pretty good.
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05-17-2006, 09:09 PM
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mini van
ok this is off the subject here but the pinion shaft in a 604 and the function of an atx trans in a 85 linx in different. I think the pin(atx trans) that came out is the carrier not pinion shaft since the power transmits via a trans fer set of gears
I think you need to look at a rear end and a front wheel drive transmission differential and somethings are not the same i.e. pinion shafts transmission class 101 (just kidding)
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05-17-2006, 09:14 PM
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They are talking about the spider pinion shaft, ie. the shaft we all know that breaks.
Actually the retainer pin breaks first, the cross shaft flies out of the diff, hole wears in the case, fluid gets low, trans runs hot, diff overheats, cross shaft spins with spiders, wears out diff carrier, THEN it flies out of the case into the bell housing; can't figure out why the trans won't live  Huh...
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05-17-2006, 09:34 PM
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Quote:
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05-18-2006, 05:56 AM
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edit cant show the pictures files are too big sorry
Last edited by airworld2; 05-18-2006 at 06:04 AM.
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