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Differential swap
Hey folks, new to the forums! I have a question, I have a 1989 f150, RWD, 3 speed auto OD tranny. 3:55 ratio on an #88 non-LS I'm looking to upgrade to a limited slip. I live up north in alberta, and I've got a good set of tires on there, but the open diff is as good as a 1whel drive lol. Has anyone done something like this?
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Your best bet would be to find a complete rear axle with the limited slip and gear ratio you desire, then that way you do not have to set up your gears again when switching carriers. That's what I ended up doing on my 94 a couple of years ago and it only ended up costing me about $150 for the axle and $40 for new u bolts. It's also an excellent time to address your rear brakes if that has not been done in awhile.
Otherwise, you are looking at $250-ish for a ford racing limited slip carrier, plus bearings, install, etc. I am doing a gear change in my truck from 3.55 to 4.10 right now, and I have already spent $250 on carrier, $150 on ring and pinion, and $125 on a quality bearing and seal kit. Professional install costs upwards of $500. They didn't make many factory rear ends with 4.10 gears on these F150's otherwise I would have taken my own advice in the first paragraph. |
Originally Posted by BLDTruth
(Post 5526562)
Your best bet would be to find a complete rear axle with the limited slip and gear ratio you desire, then that way you do not have to set up your gears again when switching carriers. That's what I ended up doing on my 94 a couple of years ago and it only ended up costing me about $150 for the axle and $40 for new u bolts. It's also an excellent time to address your rear brakes if that has not been done in awhile.
Otherwise, you are looking at $250-ish for a ford racing limited slip carrier, plus bearings, install, etc. I am doing a gear change in my truck from 3.55 to 4.10 right now, and I have already spent $250 on carrier, $150 on ring and pinion, and $125 on a quality bearing and seal kit. Professional install costs upwards of $500. They didn't make many factory rear ends with 4.10 gears on these F150's otherwise I would have taken my own advice in the first paragraph. |
Originally Posted by BLDTruth
(Post 5526562)
Your best bet would be to find a complete rear axle with the limited slip and gear ratio you desire, then that way you do not have to set up your gears again when switching carriers. That's what I ended up doing on my 94 a couple of years ago and it only ended up costing me about $150 for the axle and $40 for new u bolts. It's also an excellent time to address your rear brakes if that has not been done in awhile.
Otherwise, you are looking at $250-ish for a ford racing limited slip carrier, plus bearings, install, etc. I am doing a gear change in my truck from 3.55 to 4.10 right now, and I have already spent $250 on carrier, $150 on ring and pinion, and $125 on a quality bearing and seal kit. Professional install costs upwards of $500. They didn't make many factory rear ends with 4.10 gears on these F150's otherwise I would have taken my own advice in the first paragraph. |
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