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Author Topic: TF999-Looking for the definitve answer  (Read 10411 times)

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Offline mudkicker715

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Re: TF999-Looking for the definitve answer
« Reply #15 on: March 03, 2012, 02:38:48 PM »
Quote from: carnuck on March 03, 2012, 10:33:23 AM
Exactly. The planetaries are slightly better too IIRC. Steel case instead of aluminum.

planetaries were the same when i compared them. was that the way it was supposed to be¿
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Offline carnuck

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Re: TF999-Looking for the definitve answer
« Reply #16 on: March 04, 2012, 10:18:20 AM »
It may have been only the V8 (304) AMC cars that got the steel cased planetary gears then. The aluminum ones were quieter, which was why they didn't stay steel for all models.
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Offline BenM

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Re: TF999-Looking for the definitve answer
« Reply #17 on: March 07, 2012, 12:29:40 AM »
I thought that one style cage was for narrow gears and the other for wide gears?
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Offline carnuck

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Re: TF999-Looking for the definitve answer
« Reply #18 on: March 09, 2012, 12:08:28 AM »
That would be 904 vs the others. (909, 998, 998)
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Offline standup650

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Re: TF999-Looking for the definitve answer
« Reply #19 on: March 09, 2012, 06:25:13 AM »
So not to sound dumb, just checking, steel would be better for strength and longevity right?
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Offline rollguy

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Re: TF999-Looking for the definitve answer
« Reply #20 on: March 09, 2012, 10:43:51 AM »
It is my understanding that the 999 has a lower 1st gear than the 998.  999's were in Jeeps, 998's were in Eagles.  Don't quote me on this as I am no expert, that is just what I have heard from some trans guys in my 4X4 club.
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Offline carnuck

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Re: TF999-Looking for the definitve answer
« Reply #21 on: March 09, 2012, 11:45:35 AM »
9XX has wide ratios. 2.74 first. 1.54 second
727 has closer ratio. 2.45 first. 1.45 second

There is performance kit$ to get 2.74 or lower first/second gears from a race $hop in CA, but $1,000 a set was a bit steep to me. (I actually think they may be just stock 47RH planetaries)
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Offline DarthGremlin

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Re: TF999-Looking for the definitve answer
« Reply #22 on: March 10, 2012, 03:51:17 PM »
So, it looks like I will be picking up my 999 tomorrow.  It is still attached to a running 258 that happens to have a Weber carb....got the whole set for a deal that was too good to say no to.  All this came from an '87 Wrangler project that was apparently too rusty to go forward with.  Hope to move forward fairly quickly and get the Eagle back in fighting form.
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Patrick        Palmyra, VA
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Offline standup650

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Re: TF999-Looking for the definitve answer
« Reply #23 on: March 10, 2012, 09:13:13 PM »
Good luck! hope it goes smoothly for you!
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