powertrax/4.56 7.5

[dru]

im going to an offroad shop tomorrow to put a down payment on some yukon 4.56s. i was planning on adding a powertrax no slip in the near future. i was just on the powertrax page and noticed that their lockrite lockers for the ford 7.5 are for 4.10 gearing and lower. ( i assume by lower they mean lower numerically) is the same true for the powertrax no slip? if so i will either have to go with 4.10s and powertrax no slip or have them order and throw a ford trac lok in with the 4.56s while they are setting up the gears.

im not looking to offroad. the l/s or locker is strictly for better traction when i retrieve at a boat ramp.

thanks

 

[Hahnsb2]

They are all the same. The problem is on 3.73 and numerically higher 7.5s is the ring gear is too thick to remove the cross pin, you need the clearance a tooth or 2 with a dremel to allow the crosspin to be removed and you need to use a full crosspin, not a notched one.

 

[dru]

They are all the same. The problem is on 3.73 and numerically higher 7.5s is the ring gear is too thick to remove the cross pin, you need the clearance a tooth or 2 with a dremel to allow the crosspin to be removed and you need to use a full crosspin, not a notched one.

thanks. so, the powertrax no slip will work with my 7.5, 4.56s if the shop uses my full crosspin not a notched one? i was on the phone earlier with them and they gave me a quote that included some sort of lengthened pin(maybe) to run the 4.56s could this be the notched cross pin you're talking about?

 

[DieselTech07]

I have a lockright with the 7.5" 4.10 gears. The ring gear comes right up to the edge of the crosspin hole, when I installed the locker I had to grind a small amount off of the corner of the teeth in front of the hole to get the crosspin out, the crosspin had to come out to install the locker. The 4.56 gears will have a thicker ring gear that would cover the crosspin hole making it impossible to remove the crosspin without taking the ring gear off the carrier. As long as the locker was installed before the 4.56 ring gear was installed on the carrier I think it should work, as long as you never wanted/needed to remove the locker. See pics of my 7.5" with 4.10 ring gear and crosspin.

I think the reason the powertrax web site said 4.10 and lower was because the locker is advertised on their page as "Installation is simple because no ring and pinion set-up is required. In addition, no special tools or oils are needed" this would be true for the 4.10 and lower numerically but not for the higher gears numerically such as the 4.56 you are looking at due to covering the crosspin hole, requiring the ring gear to be removed and set up again which would take more tools/know how that most people have.

I hope this helps, maybe someone that has installed a lockrite or no slip in a 7.5" with a higher ratio than 4.10 will confirm this.

 

[dru]

I have a lockright with the 7.5" 4.10 gears. The ring gear comes right up to the edge of the crosspin hole, when I installed the locker I had to grind a small amount off of the corner of the teeth in front of the hole to get the crosspin out, the crosspin had to come out to install the locker. The 4.56 gears will have a thicker ring gear that would cover the crosspin hole making it impossible to remove the crosspin without taking the ring gear off the carrier. As long as the locker was installed before the 4.56 ring gear was installed on the carrier I think it should work, as long as you never wanted/needed to remove the locker. See pics of my 7.5" with 4.10 ring gear and crosspin.

I think the reason the powertrax web site said 4.10 and lower was because the locker is advertised on their page as "Installation is simple because no ring and pinion set-up is required. In addition, no special tools or oils are needed" this would be true for the 4.10 and lower numerically but not for the higher gears numerically such as the 4.56 you are looking at due to covering the crosspin hole, requiring the ring gear to be removed and set up again which would take more tools/know how that most people have.

I hope this helps, maybe someone that has installed a lockrite or no slip in a 7.5" with a higher ratio than 4.10 will confirm this.

thanks man, i was thinking of going with the no slip because of the ease of installation (not having to pay for labor). i understand what you're saying, if i go with installing one later ill have to redo the ring and pinion. its out of the question in that case. ill have the shop throw in a ford trac lok while they set up the gears since it shouldn't cost anymore.

thanks

 

[4x4junkie]

I'd just grind the gear so the pin can go past it. The pinion doesn't make contact at the very tips of the gear teeth anyway, so it's not likely to affect the strength of the gears at all.

Go 4.56 if you think you need them.