1990 gmc jimmy

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mocorral217

Junior Member
Joined
Mar 26, 2026
Posts
1
Reaction score
2
Location
Casa Grande, Az
First Name
Mike
Truck Year
1990
Truck Model
GMC JIMMY
Engine Size
LS 5.3
Hello everyone, My name is Mike, I like in Casa Grande, Az.
Just started building a 1990 jimmy.
Doing a ls 5.3 swap with a 4l60 and reusing the np208 that came with.
Would appreciate any help or advice, pointers ect.. also in need of some parts.
 

Mr Clean

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Location
North East Texas
First Name
Shawn
Truck Year
1982 & 1985
Truck Model
K10 Extra Cab w/ Proper SWB, & 85 K5 Blazer
Engine Size
454 BBC, & 383 Stroker
:welcome:
 

Bennyt

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May 17, 2019
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Location
Surprise
First Name
Ben
Truck Year
1977
Truck Model
C10
Engine Size
350
Hello everyone, My name is Mike, I like in Casa Grande, Az.
Just started building a 1990 jimmy.
Doing a ls 5.3 swap with a 4l60 and reusing the np208 that came with.
Would appreciate any help or advice, pointers ect.. also in need of some parts.
Welcome, '90 should have Np241 unless somebody swapped it previously. Also should have electric speedometer so you can reuse the gauges.


Tomorrow, the 28th, is the Reunion show in Mesa. Should be a few hundred square body trucks there and some vendors. Lots of inspiration.

 
Last edited:

Strick

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Location
Dunn, NC
First Name
Harold
Truck Year
1979
Truck Model
C20 Crew
Engine Size
350
Welcome from the Tarheel State. Show us some photos of that Jimmy!

HS
 

WFO

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Jan 6, 2017
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Location
Texas Panhandle
First Name
Dan
Truck Year
1986
Truck Model
K20
Engine Size
350
Welcome from the Texas Panhandle.

Came with what?
 

legopnuematic

Licensed Junk Dealer
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Location
MO
First Name
Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
Welcome from Missouri.
 

ali_c20

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Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Welcome from Austria.
 

MGD454

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Army
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Posts
15
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Location
Colorado
First Name
Mark
Truck Year
1987
Truck Model
GMC Jimmy K5
Engine Size
350
Welcome from Colorado! Lets see some pics! Mine is a 87 and I'm getting ready to do a LS swap but I'm keeping the 700R4 tranny and NP208.
 

Sad Sack

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Nebraska
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Goober
Truck Year
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C15
Engine Size
305
:welcome:
 

JamesSam

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Location
VA
First Name
Sam
Truck Year
1987
Truck Model
Silverado V10
Engine Size
5.7 L 350 v8
Welcome from central VA.
 

Fat 454

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382
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Location
Australia
First Name
Andy
Truck Year
1973
Truck Model
C20 Suburban
Engine Size
454
Cool - 1973 GMC front sheet metal, 1976 woodgrain interior and chop the roof.. than you've got a keeper! ..
 

Fat 454

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Truck Year
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Truck Model
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Engine Size
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Ha - just messin.. - post pics !
 

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