904 trans died behind 390 stroker ** UPDATE ** - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer 904 trans died behind 390 stroker ** UPDATE **

Print Thread

Page 2 of 5

1

2

3

4

5

Re: 904 trans died behind 390 stroker, time for 727???? [Re: JohnRR] #139066 10/21/08 08:03 PM 10/21/08 08:03 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Quote: If the front pump failed would it be a relatively easy fix to get at the pump from the front of the trans or does everthing need to come out??? TBF if the pump failed it usually breaks the tangs off the rotor and/or breaks the snout of the convertor , metal particles go everywhere ... yes JohnRR is correct there would be (metal)crap throughout. I can't believe that I am actually agreeing with JohnRR live every 24 hour block of time like it's your last day on earth

Re: 904 trans died behind 390 stroker, time for 727???? [Re: RapidRobert] #139067 10/21/08 08:18 PM 10/21/08 08:18 PM
Joined: Jan 2003 Posts: 683 CENTRAL MINN 1965_PLYMOUTH mopar
1965_PLYMOUTH mopar Joined: Jan 2003 Posts: 683 CENTRAL MINN	wow. come on guys. there's a reason MA MOPAR put 727's behind all the 340's. they needed a reliable tranny behind the horsepower. I myself have seen enough cracked torque converter hubs, and front seal leaks on 904 tranny's to just want something bigger and better. just my

Re: 904 trans died behind 390 stroker, time for 727???? [Re: 1965_PLYMOUTH] #139068 10/22/08 08:32 PM 10/22/08 08:32 PM
Joined: Jan 2003 Posts: 4,151 Canada -- Posts: 4034 -Registe... 5 5thAve Doesn't care what this says anyway
5thAve Doesn't care what this says anyway 5 Joined: Jan 2003 Posts: 4,151 Canada -- Posts: 4034 -Registe...	Get a 727 it has more of a chance of lasting longer.

Re: 904 trans died behind 390 stroker, time for 727???? [Re: 5thAve] #139069 10/22/08 11:20 PM 10/22/08 11:20 PM
Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN R Rug_Trucker I Live Here
Rug_Trucker I Live Here R Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN	"The only thing to do for triumph of evil is for good men to do nothing" "NUNQUAM NON PARATUS!"

Re: 904 trans died behind 390 stroker, time for 727???? [Re: Locomotion] #139070 10/23/08 09:23 AM 10/23/08 09:23 AM
Joined: Jan 2003 Posts: 1,586 Tampa, FL tpabayflyer OP pro stock
tpabayflyer OP pro stock Joined: Jan 2003 Posts: 1,586 Tampa, FL	When I had the trans rebuilt I did use a heavy duty red band... The valve body is original with a transgo shift kit and the trans always would freewheel in 1st gear, even before the rebuild so that must be how it works....... I did not get a chance to pull the trans yet and it will have to wait until the weekend. I wanted to take this car up to the garlits show next week but I am glad the trans broke close to home...... Keep munchin the popcorn as I will have the autopsy results soon...... TBF

Re: 904 trans died behind 390 stroker, time for 727???? [Re: tpabayflyer] #139071 10/23/08 09:53 AM 10/23/08 09:53 AM
Joined: Jan 2003 Posts: 4,616 Kissimmee Fl. D dusturbd340W5 master
dusturbd340W5 master D Joined: Jan 2003 Posts: 4,616 Kissimmee Fl.	I have installed a lot of transgo shift kits tf1 and tf2s in factory VBs and never had one free wheel in 1st.Factory Vb has low band apply in manual 1st. Unless you used a tf3 that is full manual and I dont remember if they free wheel in manual 1st or not its been to long on that one. 70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4

Re: 904 trans died behind 390 stroker, time for 727???? [Re: tpabayflyer] #139072 10/23/08 08:44 PM 10/23/08 08:44 PM
Joined: Jan 2005 Posts: 12,419 Kalispell Mt. H HotRodDave I Live Here
HotRodDave I Live Here H Joined: Jan 2005 Posts: 12,419 Kalispell Mt.	I always use the transgo kits and have never had one that would frere wheel. I set up the one in my 904 in my cuda with a TF1 with all the biggest shift valve holes and if you manually hit 1st at a high enough speed the rpms go way high your forehead hits the steering wheel and the back end starts sliding around, my engine makes a lot of vaccume I am not causing global warming, I am just trying to hold off a impending Ice Age!

Re: 904 trans died behind 390 stroker, time for 727???? [Re: HotRodDave] #139073 10/23/08 11:19 PM 10/23/08 11:19 PM
Joined: Sep 2007 Posts: 142 littlestown pa dustpan man member
dustpan man member Joined: Sep 2007 Posts: 142 littlestown pa	sounds like a vavle body problem

Re: 904 trans died behind 390 stroker, time for 727???? [Re: dusturbd340W5] #139074 10/23/08 11:49 PM 10/23/08 11:49 PM
Joined: Jan 2003 Posts: 1,586 Tampa, FL tpabayflyer OP pro stock
tpabayflyer OP pro stock Joined: Jan 2003 Posts: 1,586 Tampa, FL	I think it was the TF-1 kit but remember this is a lockup converter valve body.......It has an S-bend tube on the top..... Even before I messed with anything drove the car with the stock 318 2bbl the trans would freewheel in 1 st gear. I remember it would not provide engine breaking in 1st gear but I thin it would if i held it down in first... it would freewheel when left in drive???? TBF

Re: 904 trans died behind 390 stroker, time for 727???? [Re: dustpan man] #139075 10/24/08 06:50 AM 10/24/08 06:50 AM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: sounds like a vavle body problem thats what I thought of too. the valves can wear out over many many miles. Or some crap got in there and is blocking something. I put aB&M shift kit in mine many years ago and it performed great. then the car sat for several years. I just put together a motor and started driving it again and after a few hundred miles, mine started freewheeling when I downshifted to first. I changed out the valve body for a Turbo Action Cheetah manual/automatic valve body and everything is GOOD, and I mean real GOOD, now. shifting is tight, and problems went away

Re: 904 trans died behind 390 stroker, time for 727???? [Re: tpabayflyer] #139076 10/24/08 08:00 AM 10/24/08 08:00 AM
Joined: Jan 2003 Posts: 16,123 Grand Haven, MI patrick I Live Here
patrick I Live Here Joined: Jan 2003 Posts: 16,123 Grand Haven, MI	Quote: I think it was the TF-1 kit but remember this is a lockup converter valve body.......It has an S-bend tube on the top..... Even before I messed with anything drove the car with the stock 318 2bbl the trans would freewheel in 1 st gear. I remember it would not provide engine breaking in 1st gear but I thin it would if i held it down in first... it would freewheel when left in drive???? TBF stock, the tranny won't downshift to first until under 5mph when coasting. 1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod SOLD!* 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)

Re: 904 trans died behind 390 stroker, time for 727???? [Re: patrick] #139077 10/24/08 08:42 AM 10/24/08 08:42 AM
Joined: Jan 2003 Posts: 7,978 Bethel Ct A AdamR master
AdamR master A Joined: Jan 2003 Posts: 7,978 Bethel Ct	904 + 450+ hp = 4769678-Image005.jpg (123 downloads)

Re: 904 trans died behind 390 stroker, time for 727???? [Re: tpabayflyer] #139078 10/24/08 11:14 AM 10/24/08 11:14 AM
Joined: Jan 2003 Posts: 75,020 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,020 U.S.S.A.	Quote: I think it was the TF-1 kit but remember this is a lockup converter valve body.......It has an S-bend tube on the top..... Even before I messed with anything drove the car with the stock 318 2bbl the trans would freewheel in 1 st gear. I remember it would not provide engine breaking in 1st gear but I thin it would if i held it down in first... it would freewheel when left in drive???? TBF Might be an issue with the over running clutch ? The lockup convertor and it's fluid path should have ZERO effect on first gear operation .

Re: 904 trans died behind 390 stroker, time for 727???? [Re: JohnRR] #139079 10/24/08 07:22 PM 10/24/08 07:22 PM
Joined: Jan 2005 Posts: 12,419 Kalispell Mt. H HotRodDave I Live Here
HotRodDave I Live Here H Joined: Jan 2005 Posts: 12,419 Kalispell Mt.	Quote: Quote: I think it was the TF-1 kit but remember this is a lockup converter valve body.......It has an S-bend tube on the top..... Even before I messed with anything drove the car with the stock 318 2bbl the trans would freewheel in 1 st gear. I remember it would not provide engine breaking in 1st gear but I thin it would if i held it down in first... it would freewheel when left in drive???? TBF Might be an issue with the over running clutch ? The lockup convertor and it's fluid path should have ZERO effect on first gear operation . Gonna have to agree with JohnRR on this, my trans is a lock up 904 and I got no freewheeling. I think the free wheeling is from the low reverse band not applying in manual low and it should be applying with a TF 1 2 or 3 kit in manual and auto low. If reverse is fine then the band is functional and you need to figure out why it is not applying. BTW I really like LU in a street car especially with a high stall converter I am not causing global warming, I am just trying to hold off a impending Ice Age!

Re: 904 trans died behind 390 stroker, time for 727???? [Re: AdamR] #139080 10/24/08 07:27 PM 10/24/08 07:27 PM
Joined: May 2006 Posts: 296 CT T turbocolt2.4L enthusiast
turbocolt2.4L enthusiast T Joined: May 2006 Posts: 296 CT	Quote: 904 + 450+ hp = OUCH I have 480 hp to the rear wheels with a 4cyl turbo car and run a 904 w/brake with no major problems,just took out the sprag but had over 130 pulls on the chassis dyno and 4 hard passes at the track 904's can take a beatin......... 4770689-coltLVD.jpg (87 downloads)

Re: 904 trans died behind 390 stroker, time for 727???? [Re: turbocolt2.4L] #139081 10/24/08 07:33 PM 10/24/08 07:33 PM
Joined: Jan 2004 Posts: 1,250 North Carolina 4 469runner pro stock
469runner pro stock 4 Joined: Jan 2004 Posts: 1,250 North Carolina	Yes, 904's can take beatings...those lockup torque convertors can't. Most likely that is the cause of your no-drive condition. Been there on my 88 Diplomat ofter installing a nice 360.

Re: 904 trans died behind 390 stroker, time for 727???? [Re: turbocolt2.4L] #139082 10/25/08 09:29 AM 10/25/08 09:29 AM
Joined: Jan 2003 Posts: 75,020 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,020 U.S.S.A.	Quote: Quote: 904 + 450+ hp = OUCH I have 480 hp to the rear wheels with a 4cyl turbo car and run a 904 w/brake with no major problems,just took out the sprag but had over 130 pulls on the chassis dyno and 4 hard passes at the track 904's can take a beatin......... and that colt weighs HOW MUCH ??? 904 will live just fine bolted to a ROLLER SKATE ...

Re: 904 trans died behind 390 stroker, time for 727???? [Re: JohnRR] #139083 10/25/08 09:45 AM 10/25/08 09:45 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	I am fixing to find out as I am putting a 904(& a /6 one at that)behind a 451 going into a 65 dart) with a JW ultrabell. I am not going to romp on it too much live every 24 hour block of time like it's your last day on earth

Re: 904 trans died behind 390 stroker, time for 727???? [Re: RapidRobert] #139084 10/25/08 10:35 AM 10/25/08 10:35 AM
Joined: Sep 2003 Posts: 1,465 Carson City, NV B babarracuda pro stock
babarracuda pro stock B Joined: Sep 2003 Posts: 1,465 Carson City, NV	I have had 904's since 93 with everything from a 275HP 318 to a 500 HP race 360. A lock up converter is weak. I am so sick of 727 gurus hailing them when they have no practical experience with 904's. I sold my engine and trans to a guy in 2002 and he is still running the trans. Talk to John Cope at CRT. I think the biggest problem is the lockup trans, not being a 904. Tune in for my next sermon " too big a cam will make a good street motor a dog"

Re: 904 trans died behind 390 stroker, time for 727???? [Re: babarracuda] #139085 10/25/08 03:18 PM 10/25/08 03:18 PM
Joined: Jan 2003 Posts: 549 Bristol, Va fasteddie mopar
fasteddie mopar Joined: Jan 2003 Posts: 549 Bristol, Va	My tow vehicle is a '89 3/4 ton van with the 999 with lock up (hd 904). I've had it for 11 years and towed locally and made a few trips towing out of town. It was still towing fine but started leaking bad out the front seal and it stopped locking up. Had it rebuilt while it was out for the front seal fix and put in a new converter. Last week we towed to Elk Creek Dragway, about 70 miles one way and up and down a couple of steep mountains. No problems. It towed like a champ. Race car and open trailer weighs about 4900 lbs. 2003 Bristol Dragway Sportsman Champion 2016 Bristol Dragway Power Hour Champion

Page 2 of 5

1

2

3

4

5

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1