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Author Topic: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"  (Read 1478 times)

Offline jfkelley

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LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« on: January 11, 2022, 09:05:42 PM »
I have decided to do an LS swap on my 1976 High Sierra K10 4X4 , I will be buying an complete 5.3 GEN 3 / 4L60E 4WD Transmission with ECM , Harness and fuse box   ..My question to the forum experts is what transfer case will bolt up to the 4L60e?...I would like a transfer case that is a manual shift linkage nothing electronic ...Thanks in advance ...
« Last Edit: January 11, 2022, 09:11:12 PM by jfkelley »
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1976 Chevrolet Scottsdale 4x4 ,K10 33” BF Goodrich All-Terrain .. in the middle of an LS swap LM7/4l60e/NP241C

Offline JohnnyPopper

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #1 on: January 12, 2022, 04:55:59 PM »
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1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline ehjorten

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #2 on: January 13, 2022, 11:14:32 AM »
Advanced Adapters makes a kit that will adapt a NP205 (round bolt pattern - hard to find), NP208, or NP241 to a 4L60e.

https://www.advanceadapters.com/products/50-6901--gm-700r4-to-gm-np208-adapter-kit-replacing-th400/
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline jfkelley

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #3 on: January 18, 2022, 11:43:08 PM »
I finally found an NP 241C ..What adapter do I need to attach it to the 4L60e ?
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1976 Chevrolet Scottsdale 4x4 ,K10 33” BF Goodrich All-Terrain .. in the middle of an LS swap LM7/4l60e/NP241C

Offline ehjorten

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #4 on: January 19, 2022, 09:43:32 AM »
Call Advanced Adapters. They should be able to help you.
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-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline VileZambonie

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #5 on: January 19, 2022, 04:17:06 PM »
The stock adapter will work for one of these trucks with 700R4/4L60 and NP208/241
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline jfkelley

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #6 on: January 19, 2022, 09:48:47 PM »
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1976 Chevrolet Scottsdale 4x4 ,K10 33” BF Goodrich All-Terrain .. in the middle of an LS swap LM7/4l60e/NP241C

Offline VileZambonie

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #7 on: January 20, 2022, 07:02:04 AM »
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,                           ___ 
                         /  _ _ _\_
              ⌠¯¯¯¯¯'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline jfkelley

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Re: LS SWAP 5.3.4L60E / 1976 K10 4X4 "NEED TRANSFER CASE ADVISE"
« Reply #8 on: January 20, 2022, 08:52:05 PM »
Thanks @ VileZambonie I just purchased the adapter .. I have a 5.3/4l60 out of a 2005 truck with a 241 t/c out of a 91 suburban with vss.I am wanting to wire up the vss and the 4 w/d so the pcm knows when its in 4-low..But have also thought about a switch on the transfer case shift lever its self or even a toggle switch mounted remotely. Has anyone have experience with this?
« Last Edit: January 21, 2022, 06:26:16 PM by jfkelley »
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1976 Chevrolet Scottsdale 4x4 ,K10 33” BF Goodrich All-Terrain .. in the middle of an LS swap LM7/4l60e/NP241C
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