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Tberry

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Hello everyone,

Last year, I purchased an 85 Ranger equipped with a 2.8 V6 engine, A4LD transmission, and BW1350 transfer case. However, the engine was worn out, prompting my plans for a V8 swap. I had a 302 engine built and sourced an AOD transmission from a junkyard. Unfortunately, the AOD turned out to be faulty, and I'm becoming tired with the project. At this point, I simply want a functioning Ranger.

Fortunately, I obtained a free 82 Bronco that is operational but has accumulated 280,000 miles. Given its condition, it seems fitting to utilize the 302 engine in the Bronco and have the AOD rebuilt for it instead of the Ranger.

This decision leaves me with the old A4LD transmission and BW1350 transfer case, which could be reinstalled in the Ranger. However, I'm undecided on whether to opt for a rebuilt 2.8, 2.9, or aim for the 4.0 engine. My preference is to retain the existing A4LD transmission and transfer case for simplicity and cost-effectiveness. Therefore, I'm seeking advice on which engine option would be most suitable for my needs.

Thanks
 


RobbieD

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simplicity and cost-effectiveness
Since you mentioned that . . .

A rebuilt 2.8 would seem to be the easiest.

A 2.9, or a 4.0, would require some rewiring, and some fuel replumbing, of the truck to support the change from carbureted to EFI.

A rebuild may look like more up-front cost, but by the time you deal with the needed changes for the other motors, and run down all of needed "associated parts" for the changes, a rebuild may actually be more cost effective.

A rebuild would definitely be less labor intensive, to R&R, so simpler. And a 2.8 ain't really a bad motor, either.
 

alwaysFlOoReD

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If rebuild the 2.8, make sure your distributor is in good shape, and that you can find all the parts you need first. And if you plan to duraspark it, that you can find the correct distributor.
 

gaz

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@Tberry ,
- The 2.8 rebuild is no doubt the cheapest route; I presume parts for 2.8l are getting scarce.
- The 2.9l has the highest potential fuel economy but you would need both it's engine bay/cab wire harnesses and the PCM (preferably for an automatic). Parts for 2.9l are getting harder to find.
- The 4.0l swap project will cost the most but will arguably offer the best return and has the best parts availability; you will require both engine bay/cab wire harnesses, the PCM for the engine you use, fuel pump and to make the decision whether to use the donor vehicle's dash/column or love rewiring.
 

Tberry

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Since you mentioned that . . .

A rebuilt 2.8 would seem to be the easiest.

A 2.9, or a 4.0, would require some rewiring, and some fuel replumbing, of the truck to support the change from carbureted to EFI.

A rebuild may look like more up-front cost, but by the time you deal with the needed changes for the other motors, and run down all of needed "associated parts" for the changes, a rebuild may actually be more cost effective.

A rebuild would definitely be less labor intensive, to R&R, so simpler. And a 2.8 ain't really a bad motor, either.
Do you have a recommended supplier? Unfortunately the old 2.8 is gone because I went all in...
 

RonD

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1985-1987/88 A4LD only has 1 solenoid to lock torque converter, TCC solenoid
In 1988/89 a 2nd solenoid was added, for OD, 3-4 shift solenoid

4.0l came out in 1990 Rangers..............so its computer would need the 2 solenoid A4LD
So if the goal was to make use of the 1985 A4LD then go with a 2.8l or 2.9l with pre-1988 computer
 

rusty ol ranger

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