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84 M1008

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May 11, 2018
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Location
New York
First Name
Wayne
Truck Year
1984
Truck Model
M1008 K30
Engine Size
6.2 diesel
Ill have to ask it in the right thread but how much hassle is it to replace the th350 with the 700R? Sucks because i have a good 700R but its attached to a Tcase.
I'm assuming your truck is 2wd. You would have to remove the transfer case adapter and replace it with the proper tail housing. You will need a transmission valve cable bracket to make the 700R4 work. Jegs, or Summit have them.
 

roundhouse

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Location
atlanta ga
First Name
justin
Truck Year
77,78,79,80 ?
Truck Model
K10
Engine Size
350
Didn’t They make 700s that had no computers or cables for the 6.2 diesel trucks starting in 82?
 

Blue Ox

Turning Diesel Fuel Into Fun
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Location
LI-NY
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Derek
Truck Year
MCMLXXXV
Truck Model
K20HD
Engine Size
6.2L
The 700R4 is a mechanical transmission. Electronic 700 R4s are 4L60Es.

They had a lot of problems with them up to about '88ish when they added clutches and made other upgrades. However they're still kind of limited. I had one in my ''urb that held up fine behind a turbodiesel, but it appears to be the exception, and it was built by a performance shop for heavy duty service.

Oh, and it still had a TV cable.
 
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HotRodPC

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HotRod
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85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
I too would keep 4.56's and overdrive it.
 

84 M1008

Full Access Member
Joined
May 11, 2018
Posts
363
Reaction score
197
Location
New York
First Name
Wayne
Truck Year
1984
Truck Model
M1008 K30
Engine Size
6.2 diesel
The only thing controlled electrically on the R4 is the converter lockup. No such thing as an R4 without a trans valve throttle cable. It controls the shift points via the throttle linkage be it a gas or diesel.
 

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