Chassis Info

[jafo]

I'm new to Jeeps. Just bought a '79 CJ7 . I'm seeing that there are certain options on different jeeps and it matters to know what you have when ordering parts. For example, QuadraTrac . I have no idea if my jeep has this or even what it is. I'm assuming posi trac rear? But where can I go for this info?

Also, do jeeps have hidden build sheets? I have messed with restoing GM vehicles and they often had build sheets hidden on the car from assembly line workers.

 

[FLYNHYCJ7]

Welcome to the site, quadratract is a type of Transfer Case . You can get a lot of info at the cj comprehensive data section of this fourm. As for as build sheets, I haven't heard of Jeep using them on the Cj, but I could be wrong.

Sent from my SM-N920V using Tapatalk

 

[Lumpy Grits]

Q-trac is NOT a LSD rear. It's a type of Transfer Case . GOOGLE would be a help here.
Your VIN# will tell you what the Jeep had from the factory.
Decoding Jeep CJ VIN Numbers 1971-1986 Jeep CJ-5 CJ-7 CJ-8 | jeepfan.com

Post up pictures of your tranny, t'case, rear axle and we can tell you what you have now.
LG

 

[Petescj]

I'm new to Jeeps. Just bought a '79 CJ7 . I'm seeing that there are certain options on different jeeps and it matters to know what you have when ordering parts. For example, QuadraTrac . I have no idea if my jeep has this or even what it is. I'm assuming posi trac rear? But where can I go for this info?

Also, do jeeps have hidden build sheets? I have messed with restoing GM vehicles and they often had build sheets hidden on the car from assembly line workers.

QuadraTrac was a a full time 4wd Transfer Case used in Cj7s with an automatic Transmission until 1980. Your Cj has a 3 SPD manual Transmission most likely the T-150 .

You can find all the technical information you need on axles, transmissions , engines etc here:

https://www.jeep-cj.com/forums/f101/

 

[jafo]

Got it.

I read the database section on CJs top to bottom. A lot of good stuff in there with links to explanations about axels and darn near everything else.

Thanks for the info. I'm sure I'll have other questions that will have you guys scratching your heads. I am mechanically inclined, but know ziltch about jeeps, but I'm figuring things out with your guys help. So thanks.

 

[Lumpy Grits]

CJ's are 'mutts'. They are made from lots of other makers parts. LOL
LG

 

[jafo]

CJ's are 'mutts'. They are made from lots of other makers parts. LOL
LG

Ha ha! I like mutts!

While I got your ear, I'm looking at the single axle conv. kit. It requires pressing on bearings and retainer. I was.wondering if a 6 ton a frame press would handle that. What do you think?

 

[CJ]

Ha ha! I like mutts!

While I got your ear, I'm looking at the single axle conv. kit. It requires pressing on bearings and retainer. I was.wondering if a 6 ton a frame press would handle that. What do you think?

Shouldn't be a problem. I have even used a long pipe and a hammer when a press wasn't available.

 

[Lumpy Grits]

Moser is the best of the 1 piece axles.
I have used a piece of 6' long pipe to set the bearing and retainer.
Set the bearing first. Then the retainer.
LG

 

[Peanut Butter]

If you have a 3 speed manual Transmission , you most likely have a Dana 20 Transfer Case . For real identification you need to post some pictures. The PO (prior owner) may have changed a few things. That's the fun part of owning a Jeep. What should be may not be. Here is an example: http://www.jeep-cj.com/forums/f49/your-cj-original-maybe-not-heavy-pictures-25934/ With a few pictures the guys here can help you identify exactly what you have.

 

[jafo]

Shouldn't be a problem. I have even used a long pipe and a hammer when a press wasn't available.

Sounds good. I can do the pipe thing, Do you have a petroleum that you like that maybe works best for install?

 

[Torxhead]

Jafo, I would suggest keeping a tube of an assembly lubricant handy to prevent galling especially for a press fit. There are more types available than anyone can count, but you could even use motor oil or STP.

 

[jafo]

Jafo, I would suggest keeping a tube of an assembly lubricant handy to prevent galling especially for a press fit. There are more types available than anyone can count, but you could even use motor oil or STP.

I happen to have some assembly lube on the bench. That's a good idea. Thanks.