Jeep Enthusiast Forums banner

quadra trac transfere case

386 14
I have a 1978 CJ7 with 304 and 400 transmission when climbing a hill under torc I get a load bang sounds like is coming from transfere case help any ideas what's going on
1 - 15 of 15 Posts

· Registered
1974 Jeep CJ-6
Joined
·
6,678 Posts
Climbing normally or in 'emergency drive'? limited slip/clutch noise is for normal mode only, limited slip should be locked when in emergency drive and shouldn't make any noise.

1 of two things, first it is the chain jumping teeth, 2nd is there is a clutch type limited slip inside the case to provide speed difference between the front and rear shaft during normal operation and you may be hearing that limited slip releasing. 1st is to change the tcase fluid with the proper fluid to work with the limited slip clutch, then hit a big parking lot and do a bunch of figure 8's to get the limited slip working correctly. 2nd is to check the chain stretch.


New Fluid Quadratrac Fluid TCL-1

rebuild video

New chain if needed 03-5522-USA-QuadraTrac Chain ONLY Made in USA!
 

· Registered
Joined
·
11,017 Posts
Ratcheting sounds from the t case under load is almost invariably a stretched chain.
 

· Registered
Joined
·
16 Posts
Discussion Starter · #4 ·
The jeep is full time 4 wheel drive with the high low reduction so I put in low and tried going up the road again and as soon as one of the front wheels would break loose I get that loud bang so I backed down switched the E Drive on and tried again and install bangs as soon as I hit some loose gravel and the front wheel spins I took it to a shop had them change the seals to fix a leak and told them change the chain if need be brought them the TCL1 did the big circles and figure 8's in my field they said they changed the chain never had this problem before gonna try a new shop does anyone know where I can get the tool to measure the chain through the inspection hole
 

· Registered
04 TJ
Joined
·
1,050 Posts
Anyone know where I can get a tool to check the chain tension on the quadra trac transfer case
Read post #8

 

· Registered
Joined
·
71 Posts
Read post #8

Maladroit also has his YouTube channel focusing on the QT Rebuild.
 

· Registered
Joined
·
1,433 Posts
Does the CJ have a 'Double Cardan joint' on the front driveshaft? I know my J-10 does and the 'centering yoke' can wear or break and cause quite a banging noise when under heavy load.
 

· Registered
Joined
·
16 Posts
Discussion Starter · #12 ·
1 - 15 of 15 Posts
Top