Re: IML: rear-end/trans problems on '81

[sosmi@xxxxxxxxxxx]

Matt, I don't think I would use any fluid marked +3, +4, these fluids are designed for newer cars, and the fluid has synthetic additives in them. Just find Dexron 2-3-4 thats ok. Dave

 

> -------------- Original message -------------- 
> From: Matthew Gill <mgill3@xxxxxxx> 
>
> > The shop manual says it takes Dexron II, but Checker didn't have any 
> > Dexron II, so i got ATF+4 fluid for Chrysler vehicles. It said that 
> > it replaces ATF+3. Is this fluid ok even though it doesn't mention 
> > Dexron II anywhere? Or should i take it back and find Dexron II 
> > somewhere else? 
> > 
> > 
> > On Dec 2, 2006, at 7:09 AM, Frederick Joslin wrote: 
> > 
> > > Hi Matt: 
> > > 
> > > For the transmission you need to check the fluid level with the 
> > > engine and transmission both warm to hot with the engine running, 
> > > transmission in neutral and on flat ground. Do this and if the 
> > > fluid level is low add a little bit if fluid at a time until the 
> > > reading is correct. I forget 
> your vehicle, but it probably uses 
> > > DEXRON III trans fluid. If the fluid is low the transmission will 
> > > not shift properly. 
> > > 
> > > For the rear end you should really change the fluid. My experience 
> > > is with the 83/4" rear ends which do not have a drain plug. To 
> > > drain these you need a pump to pump the oil out through the fill 
> > > plug. Re-fill using a good rear end fluid any where from 75W to 
> > > 140W. Heavier fluids are worse in the winter, better in the summer, 
> > > and tend to quieten noisy rear ends a little. When I fill these 
> > > rear ends I basically fill it until it just starts to overflow. I 
> > > have not had any problems doing this. Again make sure you are on 
> > > level ground. 
> > > 
> > > Good luck. 
> > > 
> > > 
> > > ----- Original Message ----- 
> > > From: "Matthew Gill" 
> > > To: mailing-
> list@xxxxxxxxxxxxxxxx 
> > > Subject: Re: IML: rear-end/trans problems on '81 
> > > Date: Sat, 2 Dec 2006 01:10:42 -0700 
> > > 
> > > 
> > > I'm reading in my shop manual about the fluid 
> > > in the rear axle, which i believe is 
> > > considered to be the differential because it 
> > > mentions the Sure-Grip differential. It tells 
> > > me that the fluid levels need to be so far 
> > > below the bottom of the filler hole, depending 
> > > on the axle tube diameter and capacity pints. 
> > > How would one go about measuring the fluid? 
> > > I'm clueless.. at least I dont see how it can 
> > > be done without lifting the car up first. 
> > > 
> > > Gosh i hope it's just a fluid related problem, 
> > > of course that means I've got a leak to take 
> > > care of, which is still better than parts 
> > > getting broken. 
> > > 
> > > On
>  Dec 2, 2006, at 12:46 AM, Matthew Gill wrote: 
> > > 
> > > > Ok i'm not sure exactly what the universal 
> > > > joint is, is it where the drive shaft 
> > > > connects to the rear end? I saw that, and it 
> > > > appeared normal to me, of course that was 
> > > > from on my back, at night, with a 
> > > > flashlight. I suppose i could take a look in 
> > > > my manual to find out how to check the 
> > > > fluid, along with the universal joint. 
> > > > 
> > > > Thanks 
> > > > 
> > > > 
> > > > On Dec 2, 2006, at 12:13 AM, john sadowski wrote: 
> > > > 
> > > >> A couple of things I would check are the 
> > > >> rear universal joint & check if the 
> > > >> differential fluid level is where it should 
> > > >> be. 
> > > >> John 
> > > >> ----- Original 
> Message ----- From: "Matthew Gill" 
> > > >> To: 
> > > >> Sent: Friday, December 01, 2006 11:34 PM 
> > > >> Subject: IML: rear-end/trans problems on '81 
> > > >> 
> > > >> 
> > > >>> Alright, here's the scoop. 
> > > >>> 
> > > >>> As i drive it to have the car looked at by 
> > > >>> the guy's at the 76 station a couple days 
> > > >>> ago (or, my grandmother rather, since she 
> > > >>> drove it over for me at the time)... she 
> > > >>> tells me that she had to let off the gas 
> > > >>> a bit for the car to shift.. and just a 
> > > >>> while ago I was driving it earlier this 
> > > >>> evening and i went over a dip in the road 
> > > >>> and I hear a loud sound coming from the 
> > > >>> rear-right side of the car, it sou
> nded as 
> > > >>> if i had metal objects clanging around in 
> > > >>> the trunk. AFTER I heard that sound, the 
> > > >>> car would no longer shift, it would go to 
> > > >>> about 32 mph and i would hear the RPM's go 
> > > >>> high but no shifting. 
> > > >>> 
> > > >>> After i parked the car, i checked 
> > > >>> underneath and i saw quite a few spots 
> > > >>> where it looked as though the trans leaked, 
> > > >>> but i checked and there's still fluid in 
> > > >>> it, the dip stick shows that it's in the 
> > > >>> "ok" area, although i was on a very slight 
> > > >>> incline... 
> > > >>> 
> > > >>> I'm confused and worried at the same time, 
> > > >>> does anybody have any helpful tips for me 
> > > >>> o
> n this? What could be the problem? Maybe 
> > > >>> the rear-end, since I heard that loud 
> > > >>> noise in the back end of it? After it 
> > > >>> happened i continued to hear a squeaking 
> > > >>> sound coming from the back as well. 
> > > >>> 
> > > >>> 
> > > >>> Matt 
> > > >>> 
> > > >>> 
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> > > 
> > > 
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> > > 
> > > Fred Joslin 
> > > 
> > 
> > 
> &g
> t; 
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