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CaiusMarius 04-07-2013 01:09 AM

Cj5 wont move
Hey guys ran into a problem. Got a 1977 jeep wrangler cj5. It starts going and then if I switch from 2wd to 2wd and of back it will just not move. The engine starts and everything seems to be working. When I hit the gas it shakes forward like it wants to move but doesn't

It happened to me once before and after 45 min or so it started to move again and drove fine. Any ideas. Much appreciated.

jrussblues 04-07-2013 01:14 AM

Bull gear on the Dana 20 may be out of whack.

CaiusMarius 04-07-2013 01:17 AM

Any ideas on how to get it back in working order? Simple fix or no?

jrussblues 04-07-2013 01:20 AM


Originally Posted by jrussblues (Post 3604516)
Bull gear on the Dana 20 may be out of whack.

If that's the prob then its not a simple fix. What , if any mods are you running?

CaiusMarius 04-07-2013 01:33 AM

None from a mechanical stand point. Just 4" lift. If that is the issue iam assuming that if I keep it in 2wd it would be ok?

CaiusMarius 04-07-2013 12:55 PM

I tried it again this morning. It started right up and when I put in reverse it tries with a slightly jerk feeling but doesn't go anywhere. Very frustrating

Goofyjumper 04-07-2013 02:46 PM

At this point you might want to pull the drive shafts for testing.

Put the transmission in neutral.

Get under the jeep and by hand twist the output yokes on the transfer case. Shift it thru 2wd, 4wd, and 4-low and feel for binding. If you find something then you can drop the transfer case cover to see if you can visually inspect in the transfer case for problems.

CaiusMarius 04-07-2013 04:41 PM

Sigh.... Gonna try that and see

grnhornetcustoms 04-07-2013 11:42 PM

What transmission do u have? check the oil in the D20 see if you have any particulate matter ie metal shavings. D20's with a lot of miles shift hard. you might have a linkage issue with your shifter and are in neutral not in gear like you think. I had one that the gears would bind and I had to push it backwards a few feet before it would shift and fully engage. Just a thought before you tear into it.

grnhornetcustoms 04-07-2013 11:57 PM

the easiest way to tell if it is not engaging is to see if you can roll the jeep by pushing it while in park/in gear if a manual trans.

duffer 04-08-2013 09:48 AM

Going to guess that this is a linkage issue. If the gears were actually screwed up to the point of not shifting, you wouldn't have had an intermitent problem. Check the t-case external linkage first-may just be too much slop and not actually getting it into gear. A second possibility is that the set srew on the interal shift fork came loose and I would assume it would be the 2x4-4x4 shifter rail. It will be a pain in the rear, but you could probably fix a loose set screw by just pulling the t-case pan. A lot easier with them upside down on the bench.

CaiusMarius 04-08-2013 09:54 PM

Thanks for all your advise I hope I can get it fixed.

CaiusMarius 04-12-2013 08:56 PM

What abt locking locking lug nuts. How do I know if I have those on my jeep. Are they usually on from or back and what they look like?

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