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  1. Mrmopartech

    Torque convertor balance questions

    72 dart,if you want the problem solved,then we start a conversation,as yours does not work,mrmopartech
  2. Mrmopartech

    904 Rebuild?

    I would go with Fireball transmissions in williamsburg ontario.He has build mopar tranny,s for some 40+ years and build them for his and don maccalums SS/HA record holding hemi cuda,if he can,t do it,it can,t be done.mrmopartech
  3. Mrmopartech

    Flex-plate suggestions

    Buy a good B&M flex plate and be done,mrmopartech
  4. Mrmopartech

    904 automatic

    http://www.mymopar.com/downloads/transguide.pdf Use this guide to help you with any other tranny ID number identification in furture. Larger trans mount center to center are for C-B-body and truck use.What type of tail shaft does it have,slip in type trunion,bolt in? can you post a picture of...
  5. Mrmopartech

    /6 A727 id

    The tranny is a 81-85 truck unit and was used for a few applacation,short and long extensions. Go to our web site and you will find all the info on this tranny,mrmopartech http://www.mymopar.com/downloads/transguide.pdf should be the second last page,page 6. Click on the link and scroll the...
  6. Mrmopartech

    727 ID number?

    Closet,s number I found on our web site is 3898866 for a 76 318-360 truck 4x2.The tranny was built on Friday november 21 1975 and was the 4883 tranny built at that plant.Check befor ethe serial number as there are two letters before the 3898866,this ID,s the plant,mrmopartech
  7. Mrmopartech

    pls,What 904 do i have? #PK36818 1 4518 5516

    The number four is missing in the dtamping as the only other unit is a part number of 61 being the last two digits and that,s a Heavy dury 727 for a slant /6,so yours is a 904 as you have a square pan with a corner cut off,mrmopatech
  8. Mrmopartech

    Help TC won't drop in place

    The first 904 tranny,s have a 18 spline input shaft up to 67,then went to the 27 spline shaft from 68 forward and then changed to a 26 spline shaft for the lock up units,mrmopartech Email me the serial number on the side of the tranny to see what day-year the tranny is,mrmopartech
  9. Mrmopartech

    rear gearing with a four speed A833.

    If you had a 3.23 gear-275-60-15 tires and in O/D,at 70MPH you would turn the 2200rpm.You can play with this calculator for fun,mrmopartech http://vexer.com/automotive-tools/speed-rpm-calculator
  10. Mrmopartech

    904 Identification Help

    As for the numbers,the number is most likely a 2892027 for a slant /6 1968.This would be a 904 tranny which is still good for a parts tranny,as this case is different from the V8 units and the stater is at the 1 o,clock position.A 727 small block the starter is at 4 o,clock as the big block is...
  11. Mrmopartech

    Bell housing info

    This is a cast iron bell housing for a dodge truck,and not for a 833 tranny,mrmopartech
  12. Mrmopartech

    5 friction/clutch clearance issue in a 904

    Machine out the drum,to allow the proper clearance,mrmopartech
  13. Mrmopartech

    Help me to identify this trans

    tranny was built on monday july 16 1973,and was the 3324 unit built at that plant,which is the Kokomo plant,mrmopartech http://www.mymopar.com/downloads/transguide.pdf
  14. Mrmopartech

    transmission casting number identification

    look here,and read like this,mrmopartech
  15. Mrmopartech

    transmission casting number identification

    PK= assembly plant-kokomo plant next 7 digts,part number,you have 8 digits,copied down wrong or extra number last 8 digits are two sets of 4 digits. The first set of 4 digits are the build date of the tranny=2083 which is wrong as this date is april 1967,and the part number is late 70,s or early...
  16. Mrmopartech

    rear axle

    The 8 1/4 axle is one of the cheapest axle to brake,or did it wear out? This axle was not made for strength but regular driving in my opinion.Step up to a 8 3/4 diff and no more problems,mrmopartech
  17. Mrmopartech

    Big Block OR Small Block 727????

    Sent you a email about the tranny ID,mrmopartech There are some 8-10 ways to ID a tranny,MMT
  18. Mrmopartech

    big block stall behind a small block

    If it was made for a BB motor it,s going to be tighter behind a small block by about 500RPM,as long as there is nothing wrong with it,mrmopartech
  19. Mrmopartech

    BB 727 Trans help please

    You might have the wrong convertor for your motor,as this one is for a cast crankshaft,you could just drill and remove the weight and spot weld any bad spots on the convertor from the drilling.mrmopartech
  20. Mrmopartech

    727 Identification

    There is a listing for a 3681053 and it,s a 72-73 used for chrysler dodge plymouth cars with 318&360 with a weight dampener and is a heavy duty 727 unit,mrmopartech
  21. Mrmopartech

    8 3/4 rearend

    The diff will do for now,but try your best to get a complete 489 case in the future,and then enjoy it,as it will not be the weak link,mrmopartech
  22. Mrmopartech

    8 3/4 rearend

    That,s the small 1 3/4 inch diameter pinion,step pinion.If you intend to beat the piss out of it,find your self a 489 case with a sure grip(clutch type or cone type) and your good for a awhile.mrmopartech
  23. Mrmopartech

    8 3/4 rearend

    The 8 3/4 is found behind 440&hemi automatic cars so it,s not a problem,it,s the center section that,s a issue.The best case is the 489 unit,as it has the largest size pinion,1 7/8 unit,so as long as it,s set up right,you should have decades of service,mrmopartech
  24. Mrmopartech

    18 or 23 spline

    23 splind unit used 3-500$,a really good or rebuilt 18 splind unit 1500-3000$,your pick,mrmopartech
  25. Mrmopartech

    Add your abody driveshaft length for quick reference

    The normal length of the D/S is 48.89 for the 904/230 tranny,s with a 8 3/4,so measure your C/C and cut it down from there,mrmopartech
  26. Mrmopartech

    Need help with trans ID

    The tranny was built in late feb 1988,and the part number does fall into that catagory for a early year 904.Check to see if it has a lock up clutch convertor if it,s out of the car,or over ride,any sensors on the unit,mrmopartech
  27. Mrmopartech

    Flywheel question with pics

    Here are back pictures of a flywheel with a cast and forged crank,so you can ID them in the future,mrmopartech
  28. Mrmopartech

    Is this True about converters??

    Tig welding a convertor is the best way to weld in the fins,as opposed to furnace welding,as this is a assembly line welding through a oven/furnace using a copper past.Check out the link,mrmopartech...
  29. Mrmopartech

    985 case center section

    The 985 case has been used since 57 and stopped in 67.It came with a 1 3/8 pinion shaft,and was used on A-b-C-D body cars.Now they used revised cases in the next few years going to the 657 and the 741 case,all using a 1 3/8 shaft.From 59-68 the 742 1 3/4 shaft was also used.Is the 985 case for...
  30. Mrmopartech

    727 in 69 dart

    Some minor tunnel massaging is needed to have it clear,mrmopartech
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