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4L80E or GV Overdrive for my '90 Suburban?
Hello all - me and my 1990 R2500 Sub are new to the forum. 5.7 liter TBI, 2WD, 4.10 gears, 170,000 miles. I'd like to add overdrive to the Sub at some point in the near future. Maybe this summer if I can source all the right parts. Love the TH400 for it's rock solid dependability but I really...- 90Saburban
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- 4l80e swap gear vendors overdrive suburban th400
- Replies: 27
- Forum: Transmission & Transfer Case
