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I just bought an 88 wrangler, and it came with an msd ignition and a super coil or something like that. What exactly do these do? Just help out in cold starts? Also...does anyone know what transmission comes in an 88..it is an automatic..which is my only gripe about the jeep. Any help would be greatly appreciated. THanks,

-Andrew
 

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The MSD will help out a bit. Multiple Spark Discharge. It is suppose to help out with the way in with the charge in the combustion chamber burns. You might get a little bit extra mileage out of it too.

You should have the TF-904 tranny. I didn't think the older YJs had the lockup tranny ( the TF-999 ) And I am almost sure they didn't have the TF-727. The auto tranny isn't all that bad IMOO. I have found that you have to gear autos a bit lower to get them to work like I want. 3.73s and a 90 cir tire work really well. From there, 4.10s with 33s, 4.56s with 35s, 4.88s with 37s. On the intersate you turn some high RPMs but I really didn't notice a decrease in mileage much.

later <IMG SRC="smilies/jeep1.gif" border="0">
 

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Be glad you have the auto. The 5 spd would have been a Peugot which is the biggest POS ever built. You should have a TF-904. If you want to swap it you will have to check the output spline. Some are 21 and some are 23 and you will have to pull the t-case to check. If you are luckly it is a 23 spline because most of the trannies you will want to swap in are 23 spline. If it is 21 spline then you will have to swap the input gear on the t-case.
 

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Originally posted by DE Jeeper:
<STRONG>Be glad you have the auto. The 5 spd would have been a Peugot which is the biggest POS ever built. You should have a TF-904. If you want to swap it you will have to check the output spline. Some are 21 and some are 23 and you will have to pull the t-case to check. If you are luckly it is a 23 spline because most of the trannies you will want to swap in are 23 spline. If it is 21 spline then you will have to swap the input gear on the t-case.</STRONG>
Amen to that...I have that piece of $hit...errr..I mean that Peugot! If only I had known then what I know now! *sigh*
<IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/roxy.gif" border="0">
 

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Here is what I copied off of Offroad.com's website regarding your tranny.:

The TF 999 was used in CJs from 1980-1986 only with the I6 and V8 engine. It was also used in 1984-1990 SJs and J pickups with the 4.2L engine, in the YJ from 1987-1991 with the 2.5L and 4.2L engine, and in the XJ in 1991 with the 2.5L engine. A modern version of the 999 continues to be used in Wrangler YJs and TJs to this day with the I6 engine.

So according to them, you have a TF-999 tranny, but I don't really know how accurate it is.
Scott <IMG SRC="smilies/grinpimp.gif" border="0"><><

[ 09-24-2001: Message edited by: 1badjeep ]
 
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