The A/t (727) in my '74 pickup is shifting really hard, especially when going into reverse. I just got the p/u and plan on a filter and fluid change soon. However, I have never had an A/t shift this hard so if I need to do something while the trans is open I'd like to know b/4 I open it up. Any info, ideas etc?
Thanks,
fourspeed
09-06-2006, 09:49 PM
Hard in a good way, or hard in a bad way? Maybe the last guy put a shift kit in it.
Pick up a Torqueflite manual. It will tell you how to adjust line pressure, the kickdown rod, etc. The books are not easy to come by. You can go to your library and copy the pages out of a Mitchell manual though.
LEVE
09-06-2006, 11:03 PM
Can you better describe the hard shift? If the pump is going bad one of the first things to go is reverse as it requires a lot of pressure to engage.
NAPA carries the ATSG repair/overhaul manual (it may need to be ordered). I picked up mine for $15 several years ago. Now it's about $20. I have it scanned in Electronic format.
When you shift into drive, or from drive to reverse or vice versa, does it kick into gear hard enough to shake the truck?
Dodgevanman
09-07-2006, 06:49 AM
I'm pretty sure amazon.com has a book on the Torqueflites as well.
L5wolvesf
09-07-2006, 08:16 PM
Hard in a good way, or hard in a bad way? Maybe the last guy put a shift kit in it.
For reverse it is not good. If it was a forward gear doing this shift it MAY be acceptable. But this is a pretty hard clunk. Warming up softens it a small bit - but still hard.
I've heard the type of fluid can make a difference. What is spuuosed to be in Dodge trannys?
Thanks,
L5wolvesf
09-07-2006, 08:19 PM
When you shift into drive, or from drive to reverse or vice versa, does it kick into gear hard enough to shake the truck?
From park or drive to Reverse, truck is fully stopped. Yes it shakes the truck.
Thanks
Dodgevanman
09-07-2006, 08:29 PM
Dexron/Mercon was used in '74, but you can use the Chrysler ATF+3 or +4 without any trouble.
Speed Dragon
09-07-2006, 10:06 PM
If it's idling too high, it can cause it to bang into gear. An auto should idle at about 600-750 rpm.
L5wolvesf
09-11-2006, 08:57 PM
If it's idling too high, it can cause it to bang into gear. An auto should idle at about 600-750 rpm.
I checked the idle - was at 700, brought it down to 625. Still hard shift to reverse.
Did someone mention a rear pump? Can you elaborate? Is it an easy home swap or a tranny rebuild thing?
Leve - I'll do the google thing here pretty soon (work, work work0
Thanks all
LEVE
09-11-2006, 09:31 PM
There is no rear pump, there is only one pump in the TF727. It is located in the front of the transmission. It is the first item to be pulled out...
fourspeed
09-11-2006, 11:02 PM
Check that the kickdown rod is properly adjusted. You will have an adjustment somewhere on the kickdown rod - mine is down on the transmission lever.
If you want, you can mark the present location of the kickdown adjustment, then temporarily unhook it. Just put your foot on the brake, and shift forward and reverse to see if it shifts smoother. If it does, adjust the kickdown according to the factory manual. Make sure the kickdown has it's own return spring.
If this doesn't fix it, I'm betting it has to come out. :(
Mark
Speed Dragon
09-12-2006, 11:48 PM
The bands in it may be adjusted up tight, I remember several tranny guys telling me that you can tighten up the band adjust ment and make them shift quicker and harder. Maybe have a tranny guy check it out for you, the bands can be adjusted in the truck, w/o having to pull anything.
Blade Runner
09-16-2006, 12:21 AM
The bands in it may be adjusted up tight, I remember several tranny guys telling me that you can tighten up the band adjust ment and make them shift quicker and harder. Maybe have a tranny guy check it out for you, the bands can be adjusted in the truck, w/o having to pull anything.
I went to a local tranny shop to find out about their special. Y'all all know the one, $59.95, replace the filter, check and adjust the bands, shift linkages, etc... So this dude tells me that they cannot "adjust the bands" on ANY transmission. Was this dude full of the shiznit, or not know what he was talking about, or what was the deal? Any clues anyone?
Speed Dragon
09-16-2006, 02:06 AM
I think he's full of it, I'll double check next week, but I'm sure they are adjustable in the truck, cause I've had it done before on my truck. Also, you have to remember, a tranny shop isn't gonna want to adjust your bands for 60 bucks, they are gonna want to get you in there for a rebuild and charge you 300-500 bucks.
Blade Runner
09-16-2006, 02:17 AM
I think he's full of it, I'll double check next week, but I'm sure they are adjustable in the truck, cause I've had it done before on my truck. Also, you have to remember, a tranny shop isn't gonna want to adjust your bands for 60 bucks, they are gonna want to get you in there for a rebuild and charge you 300-500 bucks.
300-500? HAH!!! The same douchebag in question quoted me $1200-1500!! Yet it's rather interesting that I can order a built, badass tranny out of Jeg's or Summit for around $900!
fourspeed
09-16-2006, 02:44 AM
They COULD adjust the bands, but give the guy credit - he's probably telling you the truth. It's likely that they don't even know how.
There are two band adjustments. One is made externally and can be done without even pulling the pan. The other adjustment is internal. Remove the pan and it's visible.
You basically loosen a jam nut, torque the adjuster stud to a particular spec (I think it 72 inch pounds), then back it off a certain amount, like two turns. ??? Then tighten the jam nut and you're done. The in-lb torque wrench is the ONLY unusual tool you'll need.
Of course, you should change the fluid and filter as long as you're at it.
Get the proper specs from a transmission service manual - either factory or a Mitchell book. If you don't have one, the library does.
Mark
Speed Dragon
09-16-2006, 07:42 AM
300-500? HAH!!! The same douchebag in question quoted me $1200-1500!! Yet it's rather interesting that I can order a built, badass tranny out of Jeg's or Summit for around $900!Exactly. Of course, they also have to charge you some for labor, but still. I can have your trans built for about 400, including a shift kit and new torque converter, if prices haven't gone up.
LEVE
09-16-2006, 10:34 AM
I just had a quote for the Jeep's TF999 (version of the TF727) and it was $400 for total rebuild and new converter. I pull it, I re-install it...
bherder
09-16-2006, 12:15 PM
They COULD adjust the bands, but give the guy credit - he's probably telling you the truth. It's likely that they don't even know how.
There are two band adjustments. One is made externally and can be done without even pulling the pan. The other adjustment is internal. Remove the pan and it's visible.
You basically loosen a jam nut, torque the adjuster stud to a particular spec (I think it 72 inch pounds), then back it off a certain amount, like two turns. ??? Then tighten the jam nut and you're done. The in-lb torque wrench is the ONLY unusual tool you'll need.
Of course, you should change the fluid and filter as long as you're at it.
Get the proper specs from a transmission service manual - either factory or a Mitchell book. If you don't have one, the library does.
