bigdaddygb's 1979 jeep CJ7

bigdaddygb

New member
1979 CJ7 with only 98K miles

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Re: What did you do to your Jeep today?

today i finished pulling the body off the frame of my 1979 jeep cj7. I have a tub from a 83-84 cj7 i am thinking of replacing it with. Mine had a lot of rust repair needed. everything on this jeep is original. it appears the quadra trac was rebuilt because the case has orange form-a-gasket on it. dana 30 in the front with 3.54 gears according to plate and build data stamp on tube. Rear have not i.d'ed yet, trans is hydromatic th400 auto. Have to cut and replace the body mount blocks off the frame as they are all beat.. found a complete set at quadratec for $100. ( sorry if i am not suppose to mention companies in posts) gonna pick those up this week.. the trans had three vacuum tube that weren't hooked up but the hard pips were there. figure that went to the vacuum system for the passing gear and to change the gears.
 

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Re: What did you do to your Jeep today?

so today Wife and I finished wire wheeling and flapper wheel sanding the entire frame. removed the axles from the frame and have the frame up on saw horses. We ordered this product called rust seal from KBS. got a kit that comes with wash , metal prep, and sealer. Works like por 15 they say, i'll let you know. Started to disassemble engine to check it out and see if i really need to rebuild it or just freshen up. Pulled upper intake and found lots or crud under area where the push rods come down through. I was thinking of pressure washing crap out of push rod intake area but not sure if it will hurt engine or not. I will probably be pulling heads too so I can check out pistons and lower bearings. Got the original paint color amc blue for the engine also to paint engine with once it's all cleaned up. Can't wait till this is all done... this is for the wife and she has yet to pick a color.... she likes 4 different ones.... tangerine twist, lapis blue, root-beer and and cinder red. Have to return the rear floor pans I got from classic to current fabrication as they do not have the same contour in the rear foot well area. the new outboard supports I bought matched exactly but the pans were like 3/8 inch short from touching them. can't have that flex in floor area so I'll be ordering some new ones from quadratec soon. They say they are identical to original we'll see.
 

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Looking good, keep it up as all the hard work will definitely pay off.

Don't worry about mentioning company names, it really helps others out if they're looking for a recommended product.

The vacuum lines to the transfer case are for the 4wd dial, usually located in the glove compartment on CJ's with quadratrac. Quadratrac is full-time 4wd and all the dial does is switch between full-time and emergency 4wd. Emergency 4wd locks the front and rear axles together and should not be used on dry surfaces.
 

yeah figured out the vacuum lines when i pulled the glove box out..lol. the three lines that attach to the transmission and the quad dial weren't connected. at the trans but they were at the dial to the tube.
My next Big thing is the axle rebuild. Rear amc 20 has a lot of play going from forward to reverse wheel rotation. almost 1/2-3/4" too much i think. Also it needs one piece axle upgrade. Anyone ever put a posi in this kind of jeep ( quadratrac i mean) How much different is the gas mileage by adding it? From what i could tell i could spin one wheel while the other didn't move.... and vise versa... I have dana 30 up front left hand brake is sticking badly all that will be new when i am done.
 
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