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I was wondering what option I should choose when it asks idp 5th gear dyno, idp race lock,and idp firmer stock lock, or better yet what do they mean!?
 

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I do not have their tunes on my 6.4 but it sounds like different styles of converter lockup. 5th gear dyno sounds like it locks in 5th, race is prolly like my 6.0's x-race, so it locks in 3rd, and the last one is prolly like a stock-ish lock, it will lock at cruising speeds...
 

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I prefer a stock-ish lockup (on a daily driver), but alot of guys on here like a race lockup too. Just try them out and see which fits your driving style.
 

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I run the race lock. It shifts fine and I have no problems with it.
 

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Ya race locks da chit...the converter Wont lock up cruzuing only when you mash on it. The stock lock wont lock the converter untill after 50mph....The dyno tune locks 5th gear after 10 mph (DYNO RUNS ONLY). I just went over this with Eric Hope this helps!!
 
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