FSJs came with 4.2L as the only 6 cyl '80 to '88 (360 was the only stock V8 '78 to '91) and they came with 727 or 999 (Most 6 cyl Grand Wagoneers have a 727, but '81 to '83 Cherokee and Wagoneers could have either. Ltds only got the 727)
I've had both 727 and 999 behind the FSJ 6 cyls (drove one 360 V8 with the 999 swapped in and it was NICE to drive, even with 2.72 gears and a load!).
My observations:The 727 was strong, but had much more internal drag and poor gearing first and second for the high axle gears. (most '83 up 6 cyl 727 rigs came without lockup and had 3.31 gears) The ones with lockup got okay fuel economy, but the valvebody was set to soft shift and at low RPM, resulting in shorter trans life.
The 999 can be built far better than stock. It's weak points are the converter neck (I broke several but under pretty heavy load with no low range) and the rear sprague coming loose and spinning in the back of the case. Clutches are much smaller than the 727 as well, but that's less spinning parasitic drag. The drum seals for the clutches don't like getting hot. (they get hard fast) The rear band accumulator tends to score it's bore badly unless you replace the cast iron rings with nylon or whatever the later ones came with. (makes for better first gear engagements too!)
I have seen one early '68ish DJ style van (big boxy one not built on a regular CJ5 frame) with 327 and TH400. It was used to haul mail packages at CFB Cold Lake Alberta in the '70s.
In the past couple weeks I have seen quite a few DJ5s for sale for CHEAP! No room for the baby jeeps in my life right now though.
From: adh@xxxxxxxxxxxxxxxxx (Sandwich Maker) Subject: Re: [Amc-list] 727 trany To: amc-list@xxxxxxxxxxxx Message-ID: <200709102110.l8ALAYZ15521@xxxxxxxxxxxxxxxxx> " From: msproviero@xxxxxxxxxxx " " I don't know about DJ's, but TF727's didn't appear in FSJ's until 1980. 6-cylinder FSJ's were availabale after 1980, but I don't know if they used a 727 or a 999. Before 1980, they were TH400's (CJ-7's included). many dj5s even after '72 were made with aluminum or iron warner autos. i think by the late '70s tf equipped ones existed, and that none ever had th400s. there is - or was - a postal jeep web site that details all the dj series and which used what engine and tranny. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _________________________________________________________________Gear up for Halo® 3 with free downloads and an exclusive offer. http://gethalo3gear.com?ocid=SeptemberWLHalo3_MSNHMTxt_1
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