Did a search here and didn't find anything so, here's my confusion...
I'm working on cleaning up my replacement engine (2004 with 88K miles) and getting it all set to drop into my 2001 TJ with NV3550 tranny. Since the "new" engine is from an LJ with an automatic, one thing I will need is a pilot bearing and, of course, a clutch alignment tool.
Keep in mind that I have not pulled the old engine out yet because I want to be able to move it under it's own (klacking) power; so I can't just whoop out my calipers and answer these questions myself, but I would really like to be prepared with the proper stuff when I jump into the engine swap.
It would appear from what I see online, that the 2001 TJ uses a pilot bearing with a sleeve like this.
The inner (tranny shaft) diameter seems, from the descriptions, to be a smidgen over .75 inches. However, most of the alignment tools listed as fitting my TJ have a pilot bearing shaft diameter of a little over .56 inches (if they mention it at all). There is at least one exception in the Advanced Clutch Technology (ACT) ATCP9, which is what they suggest if you look it up by make/model/year on their site, and it states that it has "0.750" pilot diameter". Additionally, the reviews on some of the .56" tools include some users stating that the pilot size was too small for there TJ 4.0L...but they're always for late 90's models (pre NV3550 tranny).
Soooo, does anyone know for certain what size the pilot bearing inner diameter/tranny shaft diameter is for my '01 TJ? Does anyone have a particular alignment tool they have successfully used on their NV3550 equipped TJ? Can anyone give me a specific bearing they have used and like? I have found a listing for a Timken FC69907 which had a reviewer state it fit his 2003 Rubi 4.0 and it is a single unit with the (supposed) proper inner and outer diameters without using a sleeve...it's a ball bearing instead of a needle bearing like the others I've seen. I like Timken's bearings and the larger actual bearing size seems like a good idea. If the pic on the website is correct, it looks like this
Thanks for any help you can offer,
Diz
I'm working on cleaning up my replacement engine (2004 with 88K miles) and getting it all set to drop into my 2001 TJ with NV3550 tranny. Since the "new" engine is from an LJ with an automatic, one thing I will need is a pilot bearing and, of course, a clutch alignment tool.
Keep in mind that I have not pulled the old engine out yet because I want to be able to move it under it's own (klacking) power; so I can't just whoop out my calipers and answer these questions myself, but I would really like to be prepared with the proper stuff when I jump into the engine swap.
It would appear from what I see online, that the 2001 TJ uses a pilot bearing with a sleeve like this.
The inner (tranny shaft) diameter seems, from the descriptions, to be a smidgen over .75 inches. However, most of the alignment tools listed as fitting my TJ have a pilot bearing shaft diameter of a little over .56 inches (if they mention it at all). There is at least one exception in the Advanced Clutch Technology (ACT) ATCP9, which is what they suggest if you look it up by make/model/year on their site, and it states that it has "0.750" pilot diameter". Additionally, the reviews on some of the .56" tools include some users stating that the pilot size was too small for there TJ 4.0L...but they're always for late 90's models (pre NV3550 tranny).
Soooo, does anyone know for certain what size the pilot bearing inner diameter/tranny shaft diameter is for my '01 TJ? Does anyone have a particular alignment tool they have successfully used on their NV3550 equipped TJ? Can anyone give me a specific bearing they have used and like? I have found a listing for a Timken FC69907 which had a reviewer state it fit his 2003 Rubi 4.0 and it is a single unit with the (supposed) proper inner and outer diameters without using a sleeve...it's a ball bearing instead of a needle bearing like the others I've seen. I like Timken's bearings and the larger actual bearing size seems like a good idea. If the pic on the website is correct, it looks like this
Thanks for any help you can offer,
Diz
