QuadraTrac chain play?

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Fast79Chief
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Location: Eastern Pennsylvania

QuadraTrac chain play?

Postby Fast79Chief » Mon Sep 24, 2018 5:26 am

This question is for the guys with Quadratrac experience. How much chain 'play' up and down through the inspection hole is OK to still drive and cruise at highway speeds?

Thanks.
1979 Cherokee Chief S, 360, MSD Pro Billet Distributor with Factory Ignition Box (Wow), HEI Wires, Edelbrock 1406, Edelbrock Performer manifold, 3.54 gears, Tru-Trac Locker in the rear, Turbo 400, Quadratrac, Dual tanks, new 32 x 11.50's, big winch, Homemade 2.5" full length exhaust ... and a lot of work to do. :)

Fast79Chief
Posts: 174
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Location: Eastern Pennsylvania

Re: QuadraTrac chain play?

Postby Fast79Chief » Wed Oct 10, 2018 10:08 pm

No Quadratrac owners on here???
1979 Cherokee Chief S, 360, MSD Pro Billet Distributor with Factory Ignition Box (Wow), HEI Wires, Edelbrock 1406, Edelbrock Performer manifold, 3.54 gears, Tru-Trac Locker in the rear, Turbo 400, Quadratrac, Dual tanks, new 32 x 11.50's, big winch, Homemade 2.5" full length exhaust ... and a lot of work to do. :)

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Cecil14
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Re: QuadraTrac chain play?

Postby Cecil14 » Wed Oct 10, 2018 10:30 pm

I believe this info is in the TSM, isn't it?


aa
Anthony

1983 J-10 - 4.6L(MPFI)/CS130D/Hydroboost/NV3550/D300/44/44/3.54/Disc-Disc/32s/42 gallon 'burb tank

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fulsizjeep
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Re: QuadraTrac chain play?

Postby fulsizjeep » Thu Oct 11, 2018 8:06 am

My personal general rule: Anything more than one inch slack is risky business.

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Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20

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fulsizjeep
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Re: QuadraTrac chain play?

Postby fulsizjeep » Fri Oct 12, 2018 3:52 am

Cecil14 wrote:I believe this info is in the TSM, isn't it?


Yes it is but refers to using a gauge which is almost impossible to find.
Image
Sent from my IBM 5150 using TN5250 emulation.

Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20

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Cecil14
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Re: QuadraTrac chain play?

Postby Cecil14 » Fri Oct 12, 2018 9:41 am

Aaahhh, that makes more sense then. Thanks Flint!


aa
Anthony

1983 J-10 - 4.6L(MPFI)/CS130D/Hydroboost/NV3550/D300/44/44/3.54/Disc-Disc/32s/42 gallon 'burb tank

rapom
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Re: QuadraTrac chain play?

Postby rapom » Fri Oct 12, 2018 2:03 pm

Zack at Z&M Jeeps told me not to worry unless you feel it slip a bit. I have a loose
chain which should be replaced according to several sources but on Zack's advice I've been running it over 2 years now with no slippage. But I don''t offroad or beat on it which is why I probably don't have a problem.

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fulsizjeep
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Re: QuadraTrac chain play?

Postby fulsizjeep » Sat Oct 13, 2018 1:26 pm

I have been in a position to use the same approach that Zack recommends. I don't like it. A chain is not that expensive compared to hunting down another functional transfer case. The looser the chain gets, the more it can bite into the sprocket teeth further increasing wear. My dear wife had her first QT explode on her from a too loose chain. That is no fun. I agree that it is one approach to take though.
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Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20

Fast79Chief
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Location: Eastern Pennsylvania

Re: QuadraTrac chain play?

Postby Fast79Chief » Sat Oct 13, 2018 3:34 pm

I have another QT unit in the garage. I need to replace the front input seals and fully drain it before installing. The p.o. left it outside in the rain with the input open. This one has ZERO chain slack.
1979 Cherokee Chief S, 360, MSD Pro Billet Distributor with Factory Ignition Box (Wow), HEI Wires, Edelbrock 1406, Edelbrock Performer manifold, 3.54 gears, Tru-Trac Locker in the rear, Turbo 400, Quadratrac, Dual tanks, new 32 x 11.50's, big winch, Homemade 2.5" full length exhaust ... and a lot of work to do. :)

candymancan
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Re: QuadraTrac chain play?

Postby candymancan » Wed Oct 17, 2018 7:28 pm

chain in my 5.9 98 grand cherokee quadra trac 249 is worn out. It makes rubbing noises when driving and pops switching from drive to reverse.

I havent checked the slack but i know its bad lol.

Id say if there is more then 1.2 inch play it needs replaced.

I need to get one from the salvage yard.. ive seen these cases explode when driving due to chain slack... So i dont drive that Jeep much i keep to daily driving my wagoneer
2013 SS camaro, cammed, and modded too much to say 500 RWHP/650 crank 30k
1998 Jeep Grand Cherokee 5.9L Limited 191k
1998 Jeep Grand Cherokee 4.0 I6 laredo 256k
1990 Jeep Grand Wagoneer 126k

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fulsizjeep
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Re: QuadraTrac chain play?

Postby fulsizjeep » Sat Oct 20, 2018 3:57 pm

Fast79Chief wrote:I have another QT unit in the garage. I need to replace the front input seals and fully drain it before installing. The p.o. left it outside in the rain with the input open. This one has ZERO chain slack.


Water Bad.

I recommend opening it up anyway and make sure the water is removed. I would also open the differential and clean it out for good measure.

Water Bad. Really bad on the differential.
Sent from my IBM 5150 using TN5250 emulation.

Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20

Fast79Chief
Posts: 174
Joined: Wed May 09, 2018 7:10 am
Location: Eastern Pennsylvania

Re: QuadraTrac chain play?

Postby Fast79Chief » Wed Oct 24, 2018 7:52 am

Yeah, I'm going to pull the low range unit off it tomorrow. I'll pull all the plugs and let it drain in multiple positions. I'll post some pics of what I find.
I do have an O-ring / Seal kit and new seals for it too.
1979 Cherokee Chief S, 360, MSD Pro Billet Distributor with Factory Ignition Box (Wow), HEI Wires, Edelbrock 1406, Edelbrock Performer manifold, 3.54 gears, Tru-Trac Locker in the rear, Turbo 400, Quadratrac, Dual tanks, new 32 x 11.50's, big winch, Homemade 2.5" full length exhaust ... and a lot of work to do. :)


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