p400

I'm pulling the tranny this weekend to swap in a new one, but wanted to post here in case I'm missing anything before tearing into it and can't get parts after hours. Last April I did a new clutch, pressure plate, throw out bearing, fork, fork pivot, and slave cylinder. Clutch was NAPA brand...

Hey all, So I've done some researching into bypass oil systems and have developed a parts list to piece my own, as well as settled on an aftermarket kit if i go that route. However, I'm still left with two questions before pulling the trigger. 1. which oil ports on the 6.5 are supply /...

I have a 99 GMC Suburban and I have fallen victim to a cracked block (DOM 3/99). I have pulled the engine out and I am cleaning all the parts that will bolt onto my new P400 that is on order. While cleaning the parts I noticed 2 cracks in the turbo housing (pictured). This is a stock GM8 turbo...

I been trying to compile more accurate data on the various 6.5 diesels and was wondering how many of the newer 6.5 blocks have the LS 7 bolt pattern for the May 99 and newer 4L80e that has the LS 7 bolt pattern. GM enhanced May 99 and newer 6.5 diesel pov, commercial & fleet vehicles seem to...

As I cruise the web I see everyone rebuild the low mileage military takeouts 6.5 NAVISTARS however the money spent seems to be a bit sketchy and suspect the extra $$$$ for a new P400 is a better choice. The question of total seal rings in any 6.5td needs to answered as I see in one video of a...