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I have a 8 1/4 axle behind my 340 with the 904 trans and it has a Detroit Locker for a differential. I am getting tired of the noise it makes going around corners and it has an annoying click it makes when taking off from a stop that can be heard outside of the car. But my 300 horse motor is...

I plan on taking out the Detroit Locker this winter and replacing it with a limited slip unit. It's an 8 1/4 carrier on a mostly stock car and I see there's two differentials available. There's a Yukon posi unit built like a GM unit. And there's a Spicer Trac Lock unit that says it's good...

Hey Guys! Summer is here and finally got the car going. It's a 340 with a 904 behind it. I swapped out the Comp Cam 274 and installed a Lunati VooDoo 702 cam and lifters. It started after a couple spins and I fast idled it for about 5 minutes when the oil filter started leaking. Got that fixed...

Anyone here have an Edge converter that there using? Are you happy with it? They got back with a recommendation of street edge in the 2600 to 2800 stall range and an STR at 2.40, whatever that means. And a 9.5 inch impeller. Let me know what your opinion of it is.

I have an 11 inch converter in my car and I am really not happy with it. It functions just fine but it's is not a high performance type of converter. Stall is 1600 to 2200 ACC 11 inch unit. It wasn't expensive and I've had it for 10 years with no problems at all. I e-mailed the ACC guys and...

I have been fighting a 2-3 shift flare in my 904 for over 5 years now. I have tried just about everything to eliminate it with limited sucess. I think I have it narrowed down to a timing issue and not a leaking clutch or servo problem. I did a pressure test on it and the pressure seems fine...

Anyone know how long a Miller C3763 tool is? It's the tool used to measure the throttle valve stop location on a valve body.

So I took my car out of storage today and went to the gas station for fresh fuel. Coming home I pushed it to about half throttle and let it shift itself. The 1-2 shift was good and quick, but the 2-3 shift flared like it always has. It's a 904 with a Trans Go TF-2 kit in it. This thing...

I have a 904 in my car and have been having some problems with it for a while now. I had it apart 3 times after it was rebuilt and found that the front drum inner lip seal was rolled over. Fixed it and that fixed almost all the shifting issues. The problem now is the 2/3 upshift. At say half...

Hey guy's, I am still having a slight 2-3 shift flare on my 904 and was wondering if it was due to that I'm using Valvoline ATF-4 in it. Seem's like my problems started when I changed from Dexron 3. I am tired of this trans not shifting right and need to get it fixed soon.

This is the what I've come up with on my used ring and pinion. Chime in if you think it needs some more work or if it's alright. Backlash was set at .006 for this last setup. Thanks for any thoughts you have.

I'm setting up a 8 1/4 for my car and was wondering if this pattern looks like it's close. I have .074 of shims in it and backlash is set at .008. The old shim was a .069 that was in it when I bought it. Hopefully you can see enough detail in the pictures, as they were taken with a cell phone...

I have an 8 1/4 rear axle that I'm getting parts for and I was wondering if it's ok to take a new pinion bearing and sand down the inside so it will slip on and off. The old pinion had a .070 shim under the race and none under the bearing. I plan on reinstalling the race shim and fine tunning it...

Why are some sets of gears noisey and some are quiet? Is it the steel there made of or the heat treating thats used? I found a used set of 3:55 gears I was thinking of buying for my 8 1/4 I'm rebuilding and was wondering how to tell if there a quiet set, if it's even possible.

Anyone using the Powertrax Lock Right locker in their car. It's intended for 4x4 trucks but they will fit in a car diff. What's the down side to them? The literature says they have a slight click when turning. I could live with that if it is just slight.

Last year I had a flare up problem on my rebuilt 904. Flared up bad between 1/2-2/3 gear changes. Adjusted the throttle rod back and forth, cranked up the pressure relief valve, adjusted the bands. Still did it. Took it out and it had a burned up kickdown band, after 20 miles of driving. It had...

Well I got my Trans Go TF-2 kit installed and am setting the drum clearances. The numbers from Trans Go are .070-.125 for a five clutch direct drum and .012-.035 for the four clutch foreward drum. I have .073 on the direct and .023 on the foreward. There in their spec but does the rear drum...

I just recieved my TF-2 kit in the mail and have a few questions about it. I previously had a TF-SC kit in my 904 and it called for drilling out the 1-2 shift apply in the seperator plate to .096. Of course the new kit says not to drill it and remove the checkball instead. Whats the fix for...

Is there any advantages to using B&M's fluid, or any downside, other than the price? I've been using it in my 904 and was wondering if it had anything to do with the front band glazing.

I need to buy a new direct drum band and I'm kinda confused on what to get. All the different linings there are red, brown, carbon fiber, kevlar. Also flex, semi rigid, and rigid. What works the best? I called the tech at Trans-Go and he recommended the brown band, said it held the best. What...

Has anyone here put a 1.610 wide front band on a early 904? It supposed to have a 1.375 band but the drum is wide enough to fit it on.

I have my trans out of the barracuda and have it apart. I have a glazed front 1 3/8" semi rigid band and it needs replaced. It has a 4 clutch direct drum and a 3 clutch foreward drum and was wondering if that was enough for a street driven 325 hp 340. I think I can buy thinner steels and...

I have a 904 that was behind my 273 commando. It has a Trans-Go shift kit, although it's an older version, an SK TF-SC-A. It shifted nicely behind the 273 with a stock converter. Now I added 100 cubic inches and it's acting up. It's reving between the 1/2 2/3 shift. Tried adjusting the...

Hi guys, Would it be alright to use the flex plate out of my 273 and put it on my 340 with a 360 cast crank. The motor has been internally balanced. I read on another site that you can't do that. Is it to week? Has anybody had any luck using a Alabama torque converter, they seem to be really...

Hi guys, I have a 340 67 cuda putting out about 300-325 horse with a 323 rear gear. I am building a 904 for it. I have a low gear set for it and a hemi governer Trans-go shift kit, 4.2 kickdown lever. Will the 4 clutch high gear drum will it live or will it have to be changed to a 5 clutch unit...