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9
90 GMC Sierra1500 SLE Shortbed Stepside shocks
I am looking to replace the shocks on my 90. I put Gabriel Striders from Autozone on it shortly after I bought it in 04 with 99K on it. I am now at 258K and since installing the topper I have started noticing some body sway and buffeting in high winds that I never felt before. I am leaning...- 90gmcsierraL59
- Thread
- Replies: 23
- Forum: Stock Suspension + Bolt On Kits
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9
90 GMC Sierra rear brake change
I bought this truck in 04 with 99K on it and changed the rear brake shoes shortly thereafter. Last Sunday on my way home from work I heard a light grinding noise from the rear brakes when I pulled up in the driveway. I quit driving it and I got it up on the lift today. I got my money's worth...- 90gmcsierraL59
- Thread
- Replies: 38
- Forum: Axles + Brakes
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9
Contemplating utiluzing the factory oil cooler for the L59 swapped 90 GMC Sierra
I have read the threads here and hopefully I am not repeating a question. I looked at the oil cooler lines offered for the 2004 L59 and they don't have the 3/8 pipe thread fittings on the radiator side for my 90 GMC Sierra. I suppose I could buy both sets of lines, one for the 90 and one for...- 90gmcsierraL59
- Thread
- Replies: 8
- Forum: LSX + Carb Swaps
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9
Today was electric fan day 90 GMC Sierra1500 L59
Frank B came over at 1130 and we got after it. 5 hours later we test drove it. Many thanks to Frank B for a job well done. The fit and finish on the FF Dynamics fans is excellent. We had to cut the radiator support ears with the rubbers out of the shroud as they hold the radiator in place. I am...- 90gmcsierraL59
- Thread
- Replies: 3
- Forum: LSX + Carb Swaps
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Tensioner Pulley problem L59 swap
I misdiagnosed what I thought was an imminent 33 year old AC compressor failure on the 90 GMC that just got the L59 4L60E swap a little over 3000 miles ago. I was hearing a groaning noise at idle that only happened when the AC compressor was engaged. Cut the AC off and all was quiet. I bought a...- 90gmcsierraL59
- Thread
- Replies: 7
- Forum: Engine Performance + Maintenance
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9
4l60e tailshaft seep
This morning I decided to crawl under the truck snd look at everything after 1200 or so miles since L59 4l60E swap and I saw a seep at the tailshaft. No drops hanging and none on the concrete under the truck. I checked the transmission fluid after I got to work and it is still full. I queried a...- 90gmcsierraL59
- Thread
- Replies: 4
- Forum: Transmissions
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9
LM7 and 4l60E have arrived . Build thread will follow.
The new power plant and transmission have arrived in Raleigh NC. We will be procuring a new clutch fan assembly forthwith as they were not included.- 90gmcsierraL59
- Thread
- Replies: 100
- Forum: LSX + Carb Swaps
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9
Greetings to All from the Shenandoah Valley
Greetings to all! I am the proud owner of a 1990 GMC Sierra Shortbed Stepside that I bought in 2004 with 99000 miles. For another week it will have the factory 350 and 4l60 with 3.42 gears, single pull differential, automatic with AC, tilt and cruise. It is black with gray interior and cloth...- 90gmcsierraL59
- Thread
- Replies: 18
- Forum: Introduction
