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04-30-2003, 01:19 AM
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#1 |
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Registered User
Join Date: Apr 2003
Location: San Marcos, Cal.
Posts: 3
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3 speed to sm465???
The clutch is going out in my truck. It has a column shift 3 speed. Anyways, a buddy has a 465 trans in a 71 parts truck and he said I can have it for free. This might be a good swap for me as I pull a boat and travel trailer from time to time. What all is involved with this swap? Will I need a new drive shaft? The donor truck is a 3/4 ton leaf spring truck, mine is 1/2 ton coil spring rear if it matters. Thanks for any help.
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04-30-2003, 01:24 AM
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#2 |
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Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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Just pull the bell housing, driveshaft, transmission and floor hump from the donor truck. You're gonna need it all.
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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04-30-2003, 08:35 AM
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#3 |
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Registered User
Join Date: Jun 2000
Location: Bismarck, ND
Posts: 4,293
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The clutch for the 4 speed should be a larger diameter and HD too I think.
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Unrestored 68 C-10 CST. Original 327. 4-Speed CH465. 50k or so miles. TREASURER, Drum Brake Club. |
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04-30-2003, 09:49 AM
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#4 |
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Robert Olson Transport
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,306
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better take the driveshaft too just in case
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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04-30-2003, 02:17 PM
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#5 |
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Resident Curmudgeon
 
Join Date: Dec 1999
Location: NH
Posts: 6,664
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The driveshaft is going to be the biggest issue for you and you'll need the donor's driveshaft and carrier bearing. Here's why:
The 4 speed does not use a slip yolk as the 3 speed and auto's do, it uses a u-joint connection similar to the rear diff. The "slip" is in the driveshaft where the front and rear pieces join. The 3/4 ton uses a different rear differential, therefore the length of the rear shaft won't be correct to meet up with the 1/2 ton rear diff, plus the u-joint size is different. The u-joint ssue can be resolved using "hybrid" u-joints available thru NAPA, etc. So, you'll have to use the 3/4 ton's driveshaft and carrier bearing, hybrid u-joints at the rear diff, and either lengthen or shorten the rear part of the driveshaft (not sure which). Another alternative is to find a driveshaft off a 4 speed 1/2 ton truck, but these are not easy to locate.
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Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter  Maybe I need to sell some of this crap  Yet another Bozo with a sawz-all |
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