Which lockrite Ford 8.8?

[atvkid4eva]

Hey guys i have a 31 spline ford explorer 8.8 in the rear of my ranger w/ disk brakes. I'm getting a lock right for it and when i look on summits website they are showing two different ones..one for an axle with 3/4in axle shafts and one with 7/8in axle shaft..which do i need? Heres the link:

http://www.summitracing.com/search/.../Ford-8-8-in/?autoview=SKU&keyword=lock+right

Thanks.

 

[ForOffRoadDriving]

Ya got me on that one, they both say theyre for 31 spline shafts but i bet the difference in diameter (3/4 or 7/8) would be the difference between a 28 and a 31 spline shaft? i just checked the specs on the 1830LR that i installed in my 7.5 but they dont list a shaft diameter like they do with the 8.8 lockers?

 

[atvkid4eva]

right, i never knew there were two different diameter shafts? Anyone else?

 

[hondaxr650]

I've had the parts guys ask me that here at my dealership when ordering 8.8 parts too. The diameter they are talking about is the cross-shaft in the carrier. The 7/8 shaft is called a high-torque and I'm pretty sure all the Explorer 31 spline axles are the 7/8 shaft. Does it still have the I.D. tag on the cover? A dealership should be able to tell you by running the numbers which one it is.

 

[atvkid4eva]

Nope, no ID tag left. threw it away when i put in the 5.13's lol

 

[atvkid4eva]

yeah they are talking about the cross pin..anyone know the diameter of the one in a 31 spline?

 

[88_Eddie]

the EX 8.8 should have a 7/8" cross pin if it has disc brakes. i have a 3/4" cross pin in my 8.8, but it is from a 91-94 EX.

why dont you measure it?

 

[88_Eddie]

the ranger 8.8's have a smaller cross pin, i think it's maybe 1/2" it seems like. i used to have one, but i sold it recently, so i cant check

 

[Mac]

the EX 8.8 should have a 7/8" cross pin if it has disc brakes. i have a 3/4" cross pin in my 8.8, but it is from a 91-94 EX.
why dont you measure it?

The difference in which brakes? Might explain why I found both the 3/4" & 7/8" in three different places. Might want to do as said and measure the pin or see what the return policy is on un-used parts. Mine with the No-Slip/28 spline is the 3/4". Even the Richmond Gear site has bad info.
Dave


http://www.richmondgear.com/powertrax/fordtrucklr.pdf

http://cgi.ebay.com/ebaymotors/LOCK...r_Truck_Parts_Accessories&hash=item3f08ed8e7a

http://www.4wheelers.com/powertrax-lockright-c-117.html

 

[atvkid4eva]

I believe it has a 7/8" according to this previous thread:

http://204.14.93.181/forums/showthread.php?t=18494

 

[Hahnsb2]

the EX 8.8 should have a 7/8" cross pin if it has disc brakes. i have a 3/4" cross pin in my 8.8, but it is from a 91-94 EX.

why dont you measure it?

All exploder 8.8s have 7/8" cross-pin. All 31 spline 8.8s post 86 have 7/8" cross pins.

the ranger 8.8's have a smaller cross pin, i think it's maybe 1/2" it seems like. i used to have one, but i sold it recently, so i cant check

Ranger (and other 28 spline 8.8s) are 3/4" cross-pin.


I recomend the Aussie Locker over the Lock-Right.

 

[brinker88]

^what he said. Shouldnt be axle shaft diameter...its center pin diameter

 

[scotts90ranger]

All exploder 8.8s have 7/8" cross-pin. All 31 spline 8.8s post 86 have 7/8" cross pins.

Ranger (and other 28 spline 8.8s) are 3/4" cross-pin.


I recomend the Aussie Locker over the Lock-Right.

I have in my posession a carrier from a '92 Lincoln Town car that is outside that statistic... it's a 31 spline 8.8 with a 3/4" cross pin