over drive
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over drive
- Thread starter gindy
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- Springfield, Missouri-U.S.A. Earth
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- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
All depends on your R&P ratio and tire size, along with what speed you want to run.
LG
LG
gindy
Jeeper
former owner made lots of changes haven,t checked every thing out yet
looks like stock tires but he put in a 3 speed don,t know which one and haven,t
looked to see what Transfer Case i have. this little CJ5 will be mostly or around town but will also see hunting use.so there will be a lot of highway and interstate use every place i go is between 200 and 700 miles from casper thanks
looks like stock tires but he put in a 3 speed don,t know which one and haven,t
looked to see what Transfer Case i have. this little CJ5 will be mostly or around town but will also see hunting use.so there will be a lot of highway and interstate use every place i go is between 200 and 700 miles from casper thanks
Posi
Always Off-Roading Jeeper
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Sounds like you have a Transmission from 72-79 could be a T-15 or T-150 with a Dana 20 Transfer Case
Add-on Overdrive , the warn OD mates to the rear of a D18 which I'm guessing you don't have. Least expensive way to add an Overdrive would be to swap in a Transmission that has one.
Add-on Overdrive , the warn OD mates to the rear of a D18 which I'm guessing you don't have. Least expensive way to add an Overdrive would be to swap in a Transmission that has one.
gindy
Jeeper
- Posts
- 14,791
- Thanks
- 55
- Location
- Springfield, Missouri-U.S.A. Earth
- Vehicle(s)
- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
What engine do you have in this CJ?
OD-Saves wear and tear on the engine by reducing RPM at freeway speeds.
Do you have a tachometer now? If you do, what rpm do you see at 65mph?
LG
OD-Saves wear and tear on the engine by reducing RPM at freeway speeds.
Do you have a tachometer now? If you do, what rpm do you see at 65mph?
LG
gindy
Jeeper
no tack yet AMC 258 i6 / 4.2l engine
- Posts
- 14,791
- Thanks
- 55
- Location
- Springfield, Missouri-U.S.A. Earth
- Vehicle(s)
- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
AMC 258 i6 / 4.2l is red lined at 4500rpm.
Is your CJ a 5 or a 7?
Please fill out your vehicle profile.
We need to know your R&P ratio, and tire diameter.
LG
Is your CJ a 5 or a 7?
Please fill out your vehicle profile.
We need to know your R&P ratio, and tire diameter.
LG
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- Frederick colorado
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- 84 cj7, 91 cherokee, 78 chevy 3500 pu, 78 CJ7
- Posts
- 14,791
- Thanks
- 55
- Location
- Springfield, Missouri-U.S.A. Earth
- Vehicle(s)
- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
TNX-See that now.
I asked, because his profile info is a bit confusing as to model.
LG
I asked, because his profile info is a bit confusing as to model.
LG
HackFabrication
Old Time Jeeper
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2020 Grand Cherokee Summit,
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There would have been no 'add on' Overdrive for a later model CJ. As posted, there was a Saturn/Warn OD that could be added to the Model 18 Transfer Case . Your 81 CJ5 would have had the Dana 300 Transfer Case .
Being your's is an 81, it may have the T-5 Transmission , which is a 5 speed manual with 5th gear Overdrive .
AMC put the T-5 's in trying to get the CAFE up on a brick moving through the air.
Generally, an Overdrive is good if you want to run lower axle gearing (high numeric: 4.11, 4.56, 4.88, etc.) but don't want the engine screaming while going down the Interstate at 70 mph.
Being your's is an 81, it may have the T-5 Transmission , which is a 5 speed manual with 5th gear Overdrive .
AMC put the T-5 's in trying to get the CAFE up on a brick moving through the air.
Generally, an Overdrive is good if you want to run lower axle gearing (high numeric: 4.11, 4.56, 4.88, etc.) but don't want the engine screaming while going down the Interstate at 70 mph.
Posi
Always Off-Roading Jeeper
- Posts
- 8,034
- Media
- 172
- Thanks
- 78
- Location
- New England
- Vehicle(s)
- 54 Willys 3B, FI 401, T-18, ARB Locked, Hinkey Sidewinder Winch
gindy
Jeeper
thanks for all the information i,ll try and get under it to find out what Transmission and Transfer Case it has when i free up a little time
- Posts
- 14,791
- Thanks
- 55
- Location
- Springfield, Missouri-U.S.A. Earth
- Vehicle(s)
- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
Knowing your R&P ratio and tire dia would be a BIG help.
LG
LG