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06-23-2016, 12:13 PM | #1 |
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Join Date: Sep 2015
Location: Mohnton pa.
Posts: 208
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SM465 install question
Im in the process of changing over from a 3 speed to a 4speed (sm465). I have a 2wd long bed. I cut out the floor pan for the high hump.
I need some input on how to get this heavy trans lifted up and installed into the bell housing. Im doing this in the garage. So far I installed a wood 2x4 across the dash going thru both vent windows. Installed a come-a-long to the 2x4. Installed lift chains on top of the trans. Im able to lift the trans to a certain point up into the tunnel, and used my floor jack under the trans. I just need some more input to get the rest of the way there. |
06-23-2016, 12:53 PM | #2 |
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Join Date: Jul 2011
Location: strausstown pa
Posts: 3,394
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Re: SM465 install question
Your gonna need some tilt too get the input started into the bell and bearing being carefull not too knock the bearing or fork off.
Then get it more level with the motor too get it slipped into the disc and the trans seated into the bell. This can take quite a bit of effort. Rocking and turning the trans while pushing it in. Don't use the trans mount bolts too pull it home. That can cause problems. Some keep the trans in neutral it kinda helps too get the input splines lined up with the disc. I did offer up my trans jack too you. It makes it easier if ya can get the truck high enough. Just a observation here. I hope you have those jack stands under the frame in the front and not the core support pan. I could see a broken radiator if they are under the pan. Oh an that's a pretty slick lift set up
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81 camaro 355 4/spd 342 posi my first love. 67 swb step 454/4spd ott 373 posi 4/7 drop. 2000 s10 zr2 little blue truck that never gets stuck. '74 heald super bronc vt8. tecumseh powered moon rover. |
06-23-2016, 01:13 PM | #3 |
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Join Date: Aug 2013
Location: Homedale, Idaho
Posts: 160
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Re: SM465 install question
Get a couple long bolts that fit the trans/bellhousing bolts. Saw the heads off and grind smooth. Use these on two corners as alignment dowels. Used to use these a lot when splitting a tractor. Makes it a ton easier keeping the alignment straight when pulling it back together.
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Grandpa 1953 M38A1 Jeep 1989 GMC K2500 1958 Alaskan Camper all original WORK : A necessary evil that finances what I really like to do. |
06-23-2016, 01:32 PM | #4 |
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Join Date: Sep 2015
Location: Mohnton pa.
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Re: SM465 install question
Thank you for some input. I have to come to terms with the fact this is something I cant do by myself. Im close though.
Im picking up longer bolts today to cut the heads off of them to try and use them as starter dowels. the sm465 doesnt have bolt ears that stick out so using dowels like with the 3speed wont work out as easy. Doing muncie aluminum boxs years ago was easy compared to this heavy monster. |
06-23-2016, 01:47 PM | #5 | |
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Join Date: Jul 2011
Location: strausstown pa
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Re: SM465 install question
Quote:
Yhea it's no fun laying on your back wrestling with it by your self. But it is doable.
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81 camaro 355 4/spd 342 posi my first love. 67 swb step 454/4spd ott 373 posi 4/7 drop. 2000 s10 zr2 little blue truck that never gets stuck. '74 heald super bronc vt8. tecumseh powered moon rover. |
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06-23-2016, 02:19 PM | #6 |
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Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: SM465 install question
Use a trans Jack , I've never seen anyone use a 2x4 ( that can snap ) thru the vents with a come along ? It can be done with just a floor Jack and a bowl of wheaties .
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1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
06-23-2016, 03:35 PM | #7 |
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Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,227
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Re: SM465 install question
Have you checked the size of the hole in the bell housing? The 465 uses a larger hole then some of the other trans.
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06-23-2016, 07:58 PM | #8 |
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Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,723
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Re: SM465 install question
One of the best way to do this is with an engine hoist poked through the door. Use it to lift the trans up and then you can slide the hoist (not best way to treat the fixed front wheels, but gets the job done!
Harbor Freight sells a $40 transmission jack that scissors and raises with a ratchet or impact. Well worth the price of admission.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
06-24-2016, 02:09 AM | #9 |
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Join Date: Jan 2015
Location: Los Angeles California
Posts: 927
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Re: SM465 install question
I just put one in my K20 and used this from HF. I just removed the handle and propped up the trans with some 2x4s.
http://www.harborfreight.com/500-lb-...art-60730.html I used the long bolt guide technique and got it almost all the way in, once close I layed on my back and leg pressed into place. Helped a bunch putting in the t case too. The older I get the more helpful this thing is!! |
06-25-2016, 10:25 PM | #10 |
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Join Date: Sep 2015
Location: Mohnton pa.
Posts: 208
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Re: SM465 install question
Well, I got the trans in. I had a friend of mine who is a auto mechanic come over and give me a hand. We still had a hell of a time getting it together.
I wont know how the trans works out untill i button everything back together. I have to send out the drive shaft to get modified. I do have a correct 1970 gmc longbed 3/4 ton drive shaft, Im going to see what the shop has to say about that. The 3/4 ton shaft has the correct slip joint in the middle and the shaft diameter is about 2" as compared to the stock 1/2ton that is about 1-1/2" diameter. I have the 12 bolt rear as compared to the dana 60 that was in the 3/4ton, may need a special ujoint to make that work. |
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