Home Forums Gear Hunting Trucks and Four-Wheel Drives Jeep CJ-7

This one is Low Mileage 6cyl engine. Among the CJ's from Jeep where are they ranked? TIA

Actually not sure what year it is.

What transmission? The 5 speed with the 6cyl was the best Jeep motor/ transmission combo IMHO, and I've had/driven a few different combos.

TX270 He had it flat bedded to his home yesterday and it will be delivered to a guy that specializes in restores on Monday. It is a 6 cyl manual transmission.1986 model. It needs brakes and a master cylinder for starters. It has 39 264 on the Odometer.

An 1986 CJ7 could possibly have a Dana 44 rear differential, they put them on some models of that year. If so it is one of the better CJ7. I had an 1984 with the T5 5-speed. It was a smooth transmission and shifted well but not known to be very strong. The best transmission that was put in a CJ7 was a Tremac 4-speed, it was much stronger than the 5-speed.

As good as the T18?


.

Nope, T-18s are fairly bullet-proof. The Tremac 4 speed trans is known as the T-176 and I believe was only offered in CJs in 1980-1981. An easy was to tell if you have a T-176 compared to the delicate T-4 4 speed, is that the 176 has a straight shift shaft, whereas the T4 (or T5 or SR4) trans have bends to the shifter shaft.

I believe all 1986 CJs had Dana 44 rears.

No, I forgot about the T18 used in the late 1970's CJ7. My mind was thinking about the 1980 to 1986 models. Those Jeep T18 were rare and many people use an adaptor from Novak or Advance to install a Ford T18, Muncey SM420, GM465.

86 cj7 was a great year overall, I've had mine since 1989. they had a few options but the bulk were 4.2 liter, t5 tranny, AMC 20 rear end, with the dana 300 transfer case.

The motor is super strong, low horsepower but high torque. The transfer case, dana 300 is strong and quiet. rear diff. is reasonably strong just remember to keep the nuts tight on the 2 piece axle.

In my opinion the only truly weak link was the T5 tranny, runs great for a long time then starts to have problems with the synchro. swapped mine out for a NP435 with granny low, great swap, fairly easy, I bought a swap over kit from Lloyd Novak, pretty straight forward swap and a truly tough transmission.

My brother dropped it off today. I am thinking the motor is toast because it was stored too long without running it in a rusty environment

If you need a tranny, look to a Mustang GT,
Or just look for a T5 World Class.
Gearing is similar, but the tranny is much stronger.

They made several variations of T5's, and installed them in Jeep, GM, and
Ford vehicles.

You gonna trip it oldelkhunter?

Not mine to trip and my brother has no plans on tripping it either, A late friend willed it to him.

Copy any pics?

I drove an ‘84 around for a while. Loved it!

Nice clean little jeep. Nice gift for your brother

Its going to need some work, the exterior and interior are in good shape.

86 is the last of the CJ's, they are good, lots of extra parts for them. They were extremely hampered of the horsepower because of all the emission crap. With the right deletes can be a good runner.

Most had 3:73's, a good upgrade for better usability would be 4:56 or 4:88, makes it a much better all around performer. Some E-lockers and there is almost no place one couldn't go.

I think he will replace everything that doesn't work for the moment , I do not think he will mess with gearing. I think restore to close to pristine if what he said was true. He has a guy working on it that specializes in really nice restores.

I saw a buddy I hadn’t seen in a while the other day and he was driving an 86 Laredo. Was a coworkers dad’s, he’d bought it new and rarely drove it, has less than 40k on the ticker. I had no idea CJs could be had with options like cruise and A/C, guess this one was top of the line.