Re Gearing

[ktmrider]

Its coming along. Friend at the local Hot Rod shop helping me the DTT's. Ran into an issue with the used DTT for the rear end. Probably came with bolts for the carrier but I didn't get them and the stock shoulder bolts were to big. Threads were right but the shoulders were thicker than the threads. Instead of trying to find left hand grade 8 fine tread bolts we decided to drill out the carrier. Should be done with all of it in a couple of days.

 

[ktmrider]

Done, 4.10's and DTT's installed. Wow, what a difference. Pulls better, towing will be much improved for sure. Went from 1900 RPM at 70(indicated) to 2300. Glad I went ahead and spent the money. Oh yea installed some bumpstops on the rear while it was easy. The noise is gone from the front end. The intermediate shaft came out with the right side CV. Have not even pulled them apart yet to look at them. I went back with new CV axles. The used front diff had a good intermediate shaft in it.

 

[tommudd]

Done, 4.10's and DTT's installed. Wow, what a difference. Pulls better, towing will be much improved for sure. Went from 1900 RPM at 70(indicated) to 2300. Glad I went ahead and spent the money. Oh yea installed some bumpstops on the rear while it was easy. The noise is gone from the front end. The intermediate shaft came out with the right side CV. Have not even pulled them apart yet to look at them. I went back with new CV axles. The used front diff had a good intermediate shaft in it.

Another one to preach the gospel of 4.10s .......................:icon_lol::icon_lol:

 

[ktmrider]

Yea Tom with 255's and I'm sure 265's there is a definite difference. Right after I put the lift on and the bigger tires it just seemed geared to tall. i'm really happy with all the choices I've made so far. The info from everyone in here has really been a big help.

 

[wheeee32]

Yay for 4:10's!:ROFLJest::happy160::headbang:

 

[ktmrider]

Its such a nicer DD than the XJ. Tows better, way more comfortable. Just think 3 months ago it was a poor running repo sitting at the back of a lot. Its come a long way really quick.

 

[CalcityRenegade]

Another one to preach the gospel of 4.10s .......................:icon_lol::icon_lol:

Is the difference as profound with the manual transmission?

 

[tommudd]

Is the difference as profound with the manual transmission?

Yes it is although some will argue that point. Same thing though one of the guys who used to be on LOST finally regeared and was amazed how often he was shifting before just going up and down small grades on the interstate etc

 

[CactusJacked]

Is the difference as profound with the manual transmission?

No it isn't, because with a manual you have control over rpm shift points, have a lower first gear, and have an extra intermediate gear. I can keep rpm's higher into the engine's sweet spot compared to how low it goes when an automatic slops it into a higher gear. Yes a torque converter has torque multiplication, good thing, because an automatic robs more engine h.p. than a manual does. In contrast, I have a clutch and gas pedal to play with. When I went from small to tall tires, I didn't have an "omg what a difference" revelation like some have had with their automatics. Now, with that said, I have had mine on a road trip, and going through what we flatlanders would call "mountains" in Ohio, I could feel a difference from how it is here. But that type of handicap is not part of my daily driving schedule. Mine is not an argument, mine are personal before and after observations. Other's results may vary.

 

[CalcityRenegade]

No it isn't, because with a manual you have control over rpm shift points, have a lower first gear, and have an extra intermediate gear. I can keep rpm's higher into the engine's sweet spot compared to how low it goes when an automatic slops it into a higher gear. Yes a torque converter has torque multiplication, good thing, because an automatic robs more engine h.p. than a manual does. In contrast, I have a clutch and gas pedal to play with. When I went from small to tall tires, I didn't have an "omg what a difference" revelation like some have had with their automatics. Now, with that said, I have had mine on a road trip, and going through what we flatlanders would call "mountains" in Ohio, I could feel a difference from how it is here. But that type of handicap is not part of my daily driving schedule. Mine is not an argument, mine are personal before and after observations. Other's results may vary.

Good point on that too, Before I got my new off road tires I ran a set of LT245/75R16 AT's for a summer and felt very little difference with driving manual other than shifting was slightly off which never bothered me, Still could screech the tires on take off no problem, I will go to LT245/75R16 MT's when I get a JBA lift/Arms and probably leave gearing alone unless I decide to get DTT's and do 4.10's while in there.