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vehicle: 1986 Dodge short passenger Van- carburetor 318/904 8-1/4 rear. All stock. Factory ignition is that lean burn looking, Over priced, prone to failure ignition computer. Build up: I’m calling it a A904 but it is actually called a a998 I believe. It appears to be lock up converter and has...

1984 Dodge short passenger Van B150 318/904 8-1/4” with 11” brakes I am wondering what could the possible gearing be for the van/ pickup rear axle in this 8-1/4”. I am not ready to open it up yet as I am not ready to tear into it. It is a one wheel peel and the drive shaft turns just under two...

I am looking for a picture of a 650cfm Holley Street Avenger hooked up with an early style kick down with the ball and socket like found on my 66’ 904 behind my 273 4bbl. I bought the Holley throttle level extension lever kit part number 20-7. Back story is I have the wrong ratio on my set up...

8-3/4 center chuck- 741 case Is there a difference in the pinion seals between a 489, 741 and 742 case? I noticed mine is leaking. And I do not remember what kinda car the center chuck came out of for reference. Thanks! Syleng1

Off forum a bit. I have a 2000 Dakota 4.7 4x4 auto.45RFEauto. 1) will that trans bolt up to a (1974)LA 318 if need be? Possibly a flex plate conversion. 2) does any one make a stand alone PCM for that trans so I can run carb engine? Thanks-Joe

By chance does anyone have an exploded view diagram of a A-904 transmission for a 74’ Dodge tf-6 they can share? the service manual and all the transmission books I have don’t show a solid view. Sadly they jump from 727 to 904 back and forth. Nothing consistent. I know they are “all the...

New converter arrived today! Just 2800 for my 273/904. Should wake it up a tad.

So in that 66’ barracuda with the heavily modified 273 I finished a bit ago. I decided to pull the engine back out after 300miles and get the back of the crank turned to accept the larger 904 converter nub (machine shop forgot to do that when they built the engine but they are making good now...

Has anyone had a builder recently build a customer converter for a pre 67 a-904? I tried Cope- nope I tried Protorque- maybe. Engine is done and cannot machine crank for it is already done and in the car. Machine shop did not want to cut crank as “converters are easy with small register.” Lol...

So I broke the motor in my 66 Barracuda with a 8-1/4 rear I rebuilt but dis like the 2:45 gears so I bought an 8-3/4 abody rear and had a good 3:23 sg to drop in it. The axles are Dr diff big bolts for 2-1/2” x 10 drums. How do I know what actual year my housing is? My 72’ Demon has the breather...

So I sent the new to me 8-3/4 abody housing out for a good cleaning before assembly on my 66’. I purchased Doctor Diff BBP axles for stock width and green bearings. When my housing came back the machine shop took out the axle seals from the factory. With the green bearings that are sealed...

I tried the search feature and struck out. Somewhere, I think on here but maybe not, I saw a chart showing a 8-3/4 rear axle identification paint marks. I’m going thru a 741 sg unit now for a new 8-3/4 I’m building and it has a large reddish orange dawb mark on one side of the bottom of the...

I’m not the type to pass on crappy videos but love when others do. I am home sick today and watching boob-tube videos after video and found this video how a torque converter works. it’s basic, but gives a good understanding to those who don’t know how these things work. I found a few items I...

2000 Dodge Dakota SLT 4.7 auto 4X4 Rear axle is 9.25” - 3:55 open. My wife and I bought this truck for farm work around the house. Really nice truck. I put 4 new tires and my 17 year old thinks they are meant to burn off at every stop sign. He is bigger than me so I cannot beat him any more...

so I’m 99% sure I can use a 66 a-904 valve body in a 74 a-904 trans right? As long as I use the single stud neutral switch with the 66 valve body. Car is a 66 Abody with small block. Transmission expertise Opinion welcome.

Hey folks- So I purchased 66' abody a while back with a few good surprises, one of them being it has a 7.25" rear but with sure grip AND 3.23-1 ratio! I feel like I hit the 7.25 jackpot IF there was ever such a thing. No noises, no howls or clunks. This rear is a spare and if I sell it- what...