Masterd
Well-Known Member
- Joined
- October 16, 2005
- Messages
- 807
- Reaction score
- 6
- City, State
- Upland, CA
- Year, Model & Trim Level
- 1993 Explorer Sport
Quick question...
Ever since I lost 4th gear...Ive been spinning my 4.0 at around 2800rpms to keep between 70-75 on the freeway. My saving grace here are my 3.08 gears ...
My 4.0 has 289,000 miles on it and seems like its in excellent mechanical shape....Leaks oil from the rear main though...oil pressure is good when running it at 2800 rpm, even over long stretches of time.
My question is...its it safe to run the 4.0 at nearly 3000 rpms for long periods of time? It never overheats or anything like that....How about the tranny? Is running it in 3rd with the TQ locked at 3000 rpm hurting it more than it all ready is?
Thanks!
Ever since I lost 4th gear...Ive been spinning my 4.0 at around 2800rpms to keep between 70-75 on the freeway. My saving grace here are my 3.08 gears ...
My 4.0 has 289,000 miles on it and seems like its in excellent mechanical shape....Leaks oil from the rear main though...oil pressure is good when running it at 2800 rpm, even over long stretches of time.
My question is...its it safe to run the 4.0 at nearly 3000 rpms for long periods of time? It never overheats or anything like that....How about the tranny? Is running it in 3rd with the TQ locked at 3000 rpm hurting it more than it all ready is?
Thanks!
