85' BII 7.5 to a 92' ranger 8.8

[Little_blue_B2]

Alright trs friends, I'm about to do the 85 bronco II 7.5 to a 92 ranger 8.8 and from my time on this site I know its about a bolt in affair. But I am double checking my sources and seeing if I am overlooking anything. Both axles are open difs, drum breaks, I'm just stepping up (or down ) to 4.10 gears. Lucky break for me since I chewed up my ring and pinion gears in the 7.5...any advice or pointers would be much appreciated.

 

[4.0B2]

tech library man.. search button..
but you'll have to flip the spring perches from bottom to top and a little more.
search 8.8 swap and see how many results you get

 

[4x4junkie]

No need to "flip" the perches (they're already on top), but they are a little closer together on a Ranger axle vs. a BII, so you'll still need to move them regardless.

Also the 8.8" pinion flange is bigger, so you'll have to mod your driveshaft a bit.

 

[4.0B2]

oh sorry, forgot it was from a ranger..

 

[Boggin]

yeah dont need to flip them but the perches on the ranger will have to be moved out wider

 

[The Mud Addict]

Warning! The entire axle drum to drum is 3 inches narower on the Ranger rear axle than the B2 axle. I found out the hard way

 

[Little_blue_B2]

Yea I have read over the articles in the tech library, I almost overlooked the spring perches...thanks junkie. Give me a couple of weeks to find the time and I'll have it swapped in...now to find the Dana 35 to match... Thanks for the help guys

 

[Klitch]

Warning! The entire axle drum to drum is 3 inches narower on the Ranger rear axle than the B2 axle. I found out the hard way

is there measurements written down somewhere? I've got a 8.8 and d35 I'm looking to swap in, but I dont remember what they came out of.

 

[4x4junkie]

From the Axles forum FAQ:

RBV axles have the following widths at the flanges:
'83-'90 D28 front = 58"
'90up D35 front = 59.5" (both TTB & SLA)
'83-'92 Ranger rear axle = 56.5" (7.5 & 8.8)
'93up Ranger rear axle = 58.5" (7.5 & 8.8)
Bronco II rear axle = 58"
Explorer rear axle 59.5"