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  1. pduffyd

    Are SM465 cases interchangeable

    Sqhead. Check put this site for some good info on SM465. https://www.novak-adapt.com/knowledge/transmissions/manual/sm465/
  2. pduffyd

    Long bed stepside box

    Damn thats exactly what I want for my 58 project!! Long way to come from Australia!! Lol
  3. pduffyd

    Noise in transmission while clutch is engaged sm465

    Looking at the sm465 trans, this is the input shaft, the bearing is behind the 4 bolt cover that the clutch release bearing slides on. That cover/retainer only goes on one way as there is an oil way in it to feed the bearing. I agree with prairiedrifter check out GebBuilt on youtube there is a...
  4. pduffyd

    Which clutch!?

    Hi Disco. One thing to make sure of before buying your clutch and deciding between the 11" or 12" version, check your bellhousing. Easy to do to know what you can or cant do. This is for the 11" clutch, note there is no big bulge on the bottom of the bellhouse, just nice smooth casting lines...
  5. pduffyd

    1976 GMC C35 SM465 to GM ZF6

    A youtube search is a help. Here is an example.
  6. pduffyd

    3 speed Column Shifter parts

    Ole buckskin. Have a look at this thread for some information. Gmpartswiki.com can help. Thread 'Parts manual for '87 GMC 3-speed column shift.' https://www.gmsquarebody.com/threads/parts-manual-for-87-gmc-3-speed-column-shift.42321/ Once you have a part number that is a start, without that...
  7. pduffyd

    Sm465 shift forks

    Redbody. For a full rebuild kit including the anti hop out (2nd gear L,1,2,3 ) 3rd gear mod go to Novak, but invest in the Felpro gasket kit. https://www.novak-adapt.com/catalog/transmission/transmission-parts/sm465-parts For a really good tutorial youtube how to rebuild a 465 go here...
  8. pduffyd

    Small block to big block swap. What do i need to know?

    Fastnlow86. I have an 88 454 mkiv in my 76 C20 square chassis. I was going to put an 4l80 behind it but the cost to do that didnt make sense to me. So I rebuilt my SM465 manual trans, and changed the diff gears from 4.11 to 3.42 in my 14 bff. Also im running the stock 800cfm qjet You can tell...
  9. pduffyd

    Priming a New Water Pump?

    I put a gm serpentine kit on my 350 v8. All was great until the rear bearing on my alternator cs130 quit. The alternator is a reman in the GM performance 12497698 kit, and the rear bearing is too small in the stock 105A cs130. But that squeal was there all the time and got worse with rpm. I...
  10. pduffyd

    Might have Over-torqued Rod Bolts 250 I6

    If you wanted to be sure you could plasti gauge the rods ends bearings to make sure the clearance is ok. Its your engine after all.
  11. pduffyd

    Might have Over-torqued Rod Bolts 250 I6

    As marineone said. Remember to get a couple pieces of small hose to fit over the rod bolt threads so you are sure not to nick the crank journal as you replace the bolts out and in. Simple trick to stop some (more) cussing! You arent the first to have over torqued a bolt. Thinking about the...
  12. pduffyd

    Might have Over-torqued Rod Bolts 250 I6

    Look at it this way. Do you want to pull the engine again and redo the bottom end if your lucky, if the rod bolts let go it could be rods through the block. Then you need a whole new L6. For the cost of a set of bearing shells and bolts. Replace them now, and know its good.
  13. pduffyd

    Muncie 4 Speed In A Truck?

    There is always a sm465, or, an nv4500 conversion. https://high-impact.net/nv4500-conversion-package-for-chevy-truck-with-sm465
  14. pduffyd

    350 TBI in California

    About the only way you are gonna know is the center bolt rocker covers. Get the adapters and go to the edge bolt and your done. Like these. https://www.amazon.com/dp/B00QY3SEKK/
  15. pduffyd

    Another speedometer thread, stopping and asking questions before I mess something up.

    BulletBob. That diagram is from the factory manual. Which if needed I can copy and do a pdf link from drop box. But you can go to places like this. http://tcase.rsgear.com/technical/diagrams/transmission-articles/gm-sm465-4-spd.aspx And see a breakdown of the 2wd and 4x4 box. Item 61 is the...
  16. pduffyd

    Is this a correct bracket?

    Travlr. Found these under 1976 C20 454ci. Rockauto. I was looking at the return line. Close?
  17. pduffyd

    Is this a correct bracket?

    Hey Travlr. I saw your post then saw this one. Thread 'Power Steering Pump Reservoir Adjustment' https://www.gmsquarebody.com/threads/power-steering-pump-reservoir-adjustment.41147/ Shows a new rebuilt pump like your old one. You can see its part number too. Hope this helps a bit.
  18. pduffyd

    Another speedometer thread, stopping and asking questions before I mess something up.

    The other thing that maybe causing the issue is the nut holding the output yoke to the output shaft has worked loose, this holds the speedo drive gear on the shaft. See items 19 and 20. That nut has to be torqued up real good. This is for a 2wd version.
  19. pduffyd

    Clutch size

    Yeah I had the same problem, I bought an aftermarket one and trimmed and redrilled the holes in the plate for it to fit. Not what I wanted to do, but I couldnt find the part number either! I think it was this Pn 6263757 ? for bellhousings, 460486 and 6262756 bell housings. Here is a fleebay...
  20. pduffyd

    Can't identify my engine suffix.

    Ive attached the lime book. It should give you the info you are after
  21. pduffyd

    Does anyone know any specifics on this truck????

    Im assuming the 305 had an electric carb on it like the M4ME with dancing needles in the primaries. That system worked quiet well it closed loop to get the best MPG with careful driving, I had the same setup in my 84 Monti Carlo SS. I did transplant a 4L60 into it for the overdrive gear (much...
  22. pduffyd

    Clutch size

    If you go to the 12" check you have the correct bellhouse to accomodate the bigger clutch. See the 4 to 8 o'clock position has the big step for the bigger clutch. These come in hydraulic or mechanical setup.
  23. pduffyd

    Rust converters and Frame paint

    My 2c worth. Ive done my C20 frame in por15, did tge 3 step process, and im very happy with the results. While I was swinging hammers to drive out a bolt or 2, I missed the drift and hit the frame paint! Looking at the spot I hit, the paint didnt even chip. I thing to remember. The 3 step...
  24. pduffyd

    31 gallon tank conversion pictures

    The spare is gonna be hung on the drivers side, stepside fender, its noched for the spare. Im building this with a 58 apache body.
  25. pduffyd

    31 gallon tank conversion pictures

    Boltbrain Ive done the same thing with my C20. The 1986 tbi 31 gal seemed the right size, I put mine behind the rear axel, so I had to loose the spare tyre on my longbed I drilled out the rivets on the stifner between the rear spring perches and moved it to the rear of the frame. Then...

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