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4L80E or GV Overdrive for my '90 Suburban?
The Sub has 4.10 gears in it right now. I’m very happy with the way it drives currently around town - the 4.10s help it move from a stoplight and I prefer the 1-2 shifts in the 400 versus the huge RPM drop you get with a 700/4L60e from 1st-2nd gear. Every 700/4L60e has always slammed into 2nd...- 90Saburban
- Post #25
- Forum: Transmission & Transfer Case
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4L80E or GV Overdrive for my '90 Suburban?
You've all given me lots to think about. Seriously, I don't think any of it is bad advice. It seems it will all come down to price/performance for what I need. I currently do absolutely no towing, but I may one day. If I ever do, it will be an occasional car trailer either carrying a project...- 90Saburban
- Post #20
- Forum: Transmission & Transfer Case
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4L80E or GV Overdrive for my '90 Suburban?
It probably all depends on what I can find for a good price, but right now I’m leaning toward a 4L80E/700R4 over the GV unit. This is largely because I think it will end up being quite a bit cheaper unless I find a good used GV unit for a good price. New GV unit is already $3,000 plus cost to...- 90Saburban
- Post #8
- Forum: Transmission & Transfer Case
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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
- Thread
- 4l80e swap gear vendors overdrive suburban th400
- Replies: 27
- Forum: Transmission & Transfer Case
