Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

SM465 or keep the TH350?

Discussion in 'The Garage' started by Roshambo, Apr 2, 2004.

  1. Roshambo

    Roshambo Registered Member

    Joined:
    May 1, 2003
    Posts:
    50
    Likes Received:
    0
    Location:
    South Coast, OR
    OK, so I have a pretty stout rebuilt TH350, but my TC is going out. I could either buy a new one or... toss the fresh rebuilt SM465 into my truck. I have the tranny, new heavy duty clutch, bellhousing, etc.

    I would need the pedal assembly and the big question mark in my head is will the driveshaft be the right length? And what other misc. stuff would I need?

    Ive read the how to on this site on doing the conversion, can anyone who has done this before give me a heads up on any problems they had or some pics? Even a interior shot of the stick/transfer case would be great.

    Anyways, its getting late, thanks in advance guys!

    -Joe
     
  2. thefarside

    thefarside 1/2 ton status

    Joined:
    Jun 27, 2003
    Posts:
    343
    Likes Received:
    0
    Location:
    Vernon, CT
    It depends on which you would rather drive a stick or an auto. If it was a daily driver I would say get a new TC.
    Just my .02
     
  3. BlazerGuy

    BlazerGuy 3/4 ton status

    Joined:
    Apr 20, 2000
    Posts:
    9,206
    Likes Received:
    0
    Location:
    abcde
    What kind of transfer case do you have? I'd say go with the 465 and don't look back... /forums/images/graemlins/grin.gif
     
  4. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    [ QUOTE ]
    What kind of transfer case do you have? I'd say go with the 465 and don't look back... /forums/images/graemlins/grin.gif

    [/ QUOTE ]

    I would agree.

    TH 350/NP 203 is the worst crawling stock combo and the SM 465 with any case is going to be a drastic difference.

    If you don't mind shifting, GO FOR IT!! It's worth it.

    The conversion isn't that bad, we can walk you through it. Doing a mechanical linkage?
     
  5. Bruiser

    Bruiser 1/2 ton status

    Joined:
    May 21, 2000
    Posts:
    320
    Likes Received:
    0
    Location:
    Caldwell,Idaho
    Where on the South Coast of Oregon are you? I graduated High school at Gold Beach Union High School and used to work at Coast Auto Sales in Brookings? I have lots of pictures of swaping the pedals in (which I just finished up). THis was the most difficult of the swap for me. The Tech article on the main page he used a different type of pedal setup. I used a original one if you want some pictures just let me know and will also let you know some of the interesting things I learned. Your best bet is to find a parts truck or someone who has everything. I mean everything Flywheel,bellhousing,clutch fork,clutch linkage,all springs,clutch pedal assembly, tranny and tcase. And don't forgot all the bolts (makes it a lot easier if you don't have to hunt for bolts) Your rear driveline will have to be lengthened and front shortened so take this in consideration when you do the swap. If it is your DD then you may want to get the measurements from someone and find drivelines before hand or have some made. Most of the time you won't get drivelines with your tranny since it will have come out of something other than a blazer. Like mine was out of 3/4 ton. Any questions feel free to e-mail me at vincent@michels.nu
     
  6. sandawgk5

    sandawgk5 3/4 ton status

    Joined:
    Oct 28, 2003
    Posts:
    6,881
    Likes Received:
    1
    Location:
    Kitsap County PACNORWEST
    I say go for it final drive is the same and first is almost 3 times as deep /forums/images/graemlins/thumb.gif
     
  7. pvfjr

    pvfjr 1/2 ton status

    Joined:
    Feb 10, 2004
    Posts:
    2,425
    Likes Received:
    0
    Location:
    Oakridge, OR
    I say go for it. The SM465's 1st is almost a 7:1! I am also currently in the middle of the same thing. You'd be surprised at how little modification you have to do. It's pretty much a bolt-in if you change enough parts. Let me know if you have any questions.
     
  8. 84gmcjimmy

    84gmcjimmy 1 ton status

    Joined:
    Dec 3, 2003
    Posts:
    12,838
    Likes Received:
    0
    Location:
    B.C. CANADA
    Get the SM465!!
     
  9. beater_k20

    beater_k20 Banned

    Joined:
    Dec 9, 2003
    Posts:
    10,276
    Likes Received:
    0
    Location:
    Elkhart, IN
    yet another vote for the 465. if your TC is going out, then most likely your trans wont be far behind...
     
  10. Resurrection_Joe

    Resurrection_Joe 1 ton status

    Joined:
    Jan 9, 2002
    Posts:
    17,372
    Likes Received:
    0
    Location:
    Gettysburg, SD
    If you're good with the stick and can handle it off road, go for it!
     
  11. Roshambo

    Roshambo Registered Member

    Joined:
    May 1, 2003
    Posts:
    50
    Likes Received:
    0
    Location:
    South Coast, OR
    [ QUOTE ]
    Where on the South Coast of Oregon are you?

    [/ QUOTE ]

    I went to school at Pacific, and I live in Langlois. /forums/images/graemlins/laugh.gif Small world eh?!?

    Id like to see any pics you have, email em to me at Roshambo@earthlink.net, I'd really appreciate it.

    I already have the transmission, clutch, bellhousing, flexplate, etc. Will linkage from a 72 Chevy work?

    Also, I have a NP203 with a Warn Part time kit, and I just went thru it, so I'll be keeping it for now. It's my daily driver, but my last vehicle was a 6 Speed Z28, so I can deal with driving a stick.. most of my driving is highway anyways.

    Thanks for the replies guys, keep em coming! /forums/images/graemlins/laugh.gif

    -Joe
     
  12. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Unfortunately your TH 350 uses a 27 spline input, where as the 4 speeds are 10 spline or 32 spline input, so your case has got to go to complete this swap.
     
  13. Roshambo

    Roshambo Registered Member

    Joined:
    May 1, 2003
    Posts:
    50
    Likes Received:
    0
    Location:
    South Coast, OR
    [ QUOTE ]
    Unfortunately your TH 350 uses a 27 spline input, where as the 4 speeds are 10 spline or 32 spline input, so your case has got to go to complete this swap.

    [/ QUOTE ]

    Doh.

    Well, I do know where the NP205 that was mated to the trans is, guess I'll go pull that too.

    Thanks for the heads up!

    -Joe
     
  14. 75-K5

    75-K5 3/4 ton status

    Joined:
    Apr 28, 2002
    Posts:
    5,353
    Likes Received:
    0
    Location:
    Anderson, Indiana
    I vote 465 /forums/images/graemlins/peace.gif
     
  15. TruckNutzDude

    TruckNutzDude 1/2 ton status

    Joined:
    Mar 31, 2003
    Posts:
    3,532
    Likes Received:
    0
    Location:
    Agawam, MA
    465 without a doubt /forums/images/graemlins/grin.gif I'm in the middle of swapping my 700R4 for one right now /forums/images/graemlins/waytogo.gif
     
  16. bouncytruck

    bouncytruck 1/2 ton status

    Joined:
    Oct 11, 2001
    Posts:
    858
    Likes Received:
    0
    Location:
    Bothell, WA
    [ QUOTE ]
    [ QUOTE ]
    Where on the South Coast of Oregon are you?

    [/ QUOTE ]

    I went to school at Pacific, and I live in Langlois. /forums/images/graemlins/laugh.gif Small world eh?!?

    [/ QUOTE ]

    I graduated from North Bend. My parents own an autoparts store in Coos Bay...
     
  17. Roshambo

    Roshambo Registered Member

    Joined:
    May 1, 2003
    Posts:
    50
    Likes Received:
    0
    Location:
    South Coast, OR
    [ QUOTE ]
    I graduated from North Bend. My parents own an autoparts store in Coos Bay...

    [/ QUOTE ]

    Wow. Yeah, Small world. /forums/images/graemlins/eek.gif

    Well, 465 with a NP205 I think it is then. Anyone have any pics to contribute?

    Hmm.. then I'll have that perfectly good 203 just laying around.

    Doubler? /forums/images/graemlins/whistling.gif

    -Joe
     
  18. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

    Joined:
    Apr 21, 2001
    Posts:
    5,634
    Likes Received:
    0
    Location:
    Escondido, CA
    i vote ditch the sludge box, slap in the almost indestructable 465 and a double behind it. then you would be good.
    grant
     
  19. jerry303

    jerry303 Registered Member

    Joined:
    Apr 28, 2003
    Posts:
    79
    Likes Received:
    0
    Location:
    Littleton, Colorado
    Hell yeah, if you got a doubler and the Sm465 you would have quite the crawl ratio, i plan on doing this when i get the $$
     
  20. Roshambo

    Roshambo Registered Member

    Joined:
    May 1, 2003
    Posts:
    50
    Likes Received:
    0
    Location:
    South Coast, OR
    Heh heh.. Doubler it is. /forums/images/graemlins/peace.gif

    -Joe
     

Share This Page