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09-17-2007, 05:58 PM
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#1 |
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Registered User
Join Date: Apr 2007
Location: Kalamazoo, Michigan, USA
Posts: 538
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3 speed to 4 speed on a 4wd
I am working on my k20 with three on the tree. I also have a 4 speed transmission from a c20. What all is needed to swap the 4 speed into the truck to get rid of the column shift?
Look like it will not mate right up to the x-fer case shift housing. 
__________________
1970 K20, 350--- SOLD 05 silverado extended cab short box- duramax Jeep wrangler unlimited |
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09-17-2007, 08:56 PM
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#2 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 3 speed to 4 speed on a 4wd
Different adaptor/pedestal.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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09-17-2007, 10:17 PM
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#3 |
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Registered User
Join Date: Apr 2007
Location: Kalamazoo, Michigan, USA
Posts: 538
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Re: 3 speed to 4 speed on a 4wd
Ya, I was afraid of that. Just another part to hunt down
__________________
1970 K20, 350--- SOLD 05 silverado extended cab short box- duramax Jeep wrangler unlimited |
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09-18-2007, 12:06 AM
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#4 |
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huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,368
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Re: 3 speed to 4 speed on a 4wd
The C/20 trans will be a 2 wheel drive trans. You might have a length issue with the 4spd's output shaft...
Chuck
__________________
90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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09-18-2007, 03:02 AM
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#5 |
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Registered User
Join Date: Apr 2007
Location: Freedom CA
Posts: 488
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Re: 3 speed to 4 speed on a 4wd
I think the 2wd tranny has more output splines as well.
__________________
68 Chevrolet k20 Longbed 350 SM465/205, Dana 44, 14bolt, Power steering, Power Disk Brakes, 35" BFGs. 84 Chevrolet Suburban K20 6.2 Banks turbo TH400/NP208 Now with G80 68 GMC C20 Parts? Truck And a few cars 
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09-18-2007, 04:17 AM
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#6 |
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Senior Member
Join Date: Dec 2003
Location: Kingsport TN
Posts: 4,641
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Re: 3 speed to 4 speed on a 4wd
if you have a long wheel base switch to a divorced transfer case it makes life easier and will let you use what ever trans you want to use.
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Earl 68 2500 4x4 GMC Burb |
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09-18-2007, 06:25 AM
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#7 |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 3 speed to 4 speed on a 4wd
Yeah,that^^^.Gives you a better front shaft angle,as well.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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09-18-2007, 12:17 PM
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#8 |
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Registered User
Join Date: Apr 2007
Location: Kalamazoo, Michigan, USA
Posts: 538
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Re: 3 speed to 4 speed on a 4wd
options, options. I could also tear apart the trany and put in the right output shaft.
__________________
1970 K20, 350--- SOLD 05 silverado extended cab short box- duramax Jeep wrangler unlimited |
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