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Okay so my search hasn't exactly been the most fruitful of the following question. What are the dimensions of a Renix 4.0 TPS bolt and IAC bolt? I wanted to replace the bolts because I lost one, the other TPC bolt started stripping at the torx head, and the IAC bolts somehow have a triangular shape to the shaft. On a whim yesterday, I took the TPS bolt to the hardware store, and it seemed to match with an M5, but the M5s that I took home seem too big. Today I returned and noticed that the TPS bolt will thread into both the M5 and the 10-32 gauges. But when I compare the bolt to what they have, it seems the threads don't sawtooth together with the 10-32 bolts. Or maybe it was 8-32, heck I dunno, I've got so many numbers already to memorize... The IAC looks to have a larger diameter shaft. '89 4.0 Renix, by the way.

I'm know sometime, somewhere, that this has been discussed. But, in a quick search on here did not find much of anything. Anyways, I know lots have said that Bosch is not what it used to be, and can have it's issues. Many say NTK is good, especially for Renix. That said, I found a couple of options on amazon. I will also check and see what I can get at work. I found an AC Delco and an NTK. price difference about $10. IF the NTK is the best bet I have no issue sending that extra $. Hoping that there will be some educated responses and feedback. Thank you for looking. ACD 213-1299 http://smile.amazon.com/ACDelco-213-1299-Professional-Heated-Oxygen/dp/B000C9L3ZA/ref=sr_1_8?s=automotive&ie=UTF8&qid=1440810612&vehicle=1989-42-347-20--9---3363-242-8---14-1-0&sr=1-8&ymm=1989%3Ajeep%3Acherokee&keywords=oxygen+sensor&pebp=1440810627754&perid=0HY2RVYAXMA5ESF4E047 NGK/NTK 23553 http://smile.amazon.com/NGK-23553-Oxygen-Sensor-Packaging/dp/B000C5M0Q0/ref=sr_1_13?s=automotive&ie=UTF8&qid=1440810612&vehicle=1989-42-347-20--9---3363-242-8---14-1-0&sr=1-13&ymm=1989%3Ajeep%3Acherokee&keywords=oxygen+sensor

So, I'm building an 87 Comanche. I'm using a 91 HO Cherokee for the engine, transmission, T-case, electrical, dash and so on. Started a awhile back. So, I bought a new CPS sensor. Started installing it. And I'll tell you what, I have quite a few choice words for the guy that decided that location was a good place. I hope he suffers an eternity of having to replace these. On a clean truck, not bad, but on a well driven one... I spent hours trying to get it installed. The dang bolts won't thread in the holes, with sensor. But, sure as hell, I can hand thread with out the sensor. put the sensor back, and put the bolts in, turn for F-N hours, and never grab a thread. Well finally get dat b!tch up, and start to connect it. I can't find the matching connector on the harness! W.T.F!!! I've read there may have been a service bulletin to relocate connector to inside the cab. Take dash apart, and I can't locate a matching connector. I have 3 other XJ / MJ's to compare. 2000 XJ, CPS looks like it connects to harness with the transmission on passenger side. My 91/87 MJ no have that... 1990 MJ, CPS is connected to a GM style connector off the injector harness. My 91/87 MJ no have that same style plug.. Now, there is an un used round 3 pin connector on the injector harness. I always figured it was for a different TB. So, I goto Autozone, and have them show me a CPS from a 91... Damn it!, looks like it uses a round connector. So, I just spent some time in CPS HELL, and installed the wrong damn sensor... Now, I got to remove that sensor, buy correct one, and pray I can install in less then 8hr... before all this started, I went to a u pull it salvage yard, and pulled a CPS. It only took me 10min to remove it. I wanted to bolts, cause I did not know the size needed, I figured if I was going through the pain of installing a CPS, I may as well start with correct bolts. The F N issue is I could not get the bolts to bite as I turned the wrench. I used paper to make sure the bolt was not sliding down into the socket... Anyway, for thats don't know, there are different plugs on the CPS used. now I know. I'm debating on just cutting both ends off and putting on GM style weather pack connectors.

I'm going to add Oil temp, Oil Pressure, water temp, AFR, trans temp, and some other gauges. Questions, Where is the best place to pull oil pressure? Near the factory one would be best, but I can't find any spliters for that. Water Temp, The engine is an HO from 92, and has a factory sensor up on the water neck. but, the old school temp sensor is still on the rear of the block. Can I replace that with a sensor from a gauge? I've looked hard, and and I can't find a "Deep" alum. Transmission pan for the Automatics in these trucks, do they make them? Those usually have a temp sensor hole. And, on the subject of Automatic Transmissions, what is everyone using for aftermarket cooling, that fits with the condenser? Thanks