Anyone know the market rate for a used (unknown mileage or conditions) R151F tranny with bell housing, and 23-spline transfer case? I just watched the same setup go on ebay for total USD 625. Marlin sells his rebuilt for nearly a grand. My friend offered to sell me his for $100, which I know is a screaming deal - I'm just trying to figure out how much he is losing on the deal, ie, how long I will be buying rounds.

 

If its got a 22RTE bell housing - its worth a bit (the bell housing)
(call me - I want it)

AFAIK the actual R15x series of trannys themselves are not that valuable.

The 22RTE version I *think* had a low 1st gear and tat is worth more than normal.

The standard v6 ones are not worth much as they are common

 

Grab it for sure. I got one about 6 months ago for $1500 (w/ dual 23-spline cases and 4.7 gears). Yes, the 151F has the lower 1st gear, 4.31:1 and Marlin has the 5.15 gears now. I think Marlin gets $650 core charge on the tranny alone.

 

ewong - yes, from turbo. I wonder if it will mate up to my eventual 1KZ-TE, since if I remember correctly the KZs came with W-series trannies? Plenty of time to figure that one out.

4crawler - the R151F stock tranny also has a higher top gear, correct? i jotted the gear ratios down a while back for comparison, from memory gears 1-3 were lower than W-series, both have 1:1 in 4th, and R151F 5th was *higher* than W-series 5th.

Not sure how this will translate for my stocker, but I am putting 31" tires on very soon, so maybe the slightly lower ratios will help a bit, but I'm afraid the higher cruise gear will hurt a little.

 

Not a big difference in 5th, 0.85 vs. 0.83:
http://www.marlincrawler.com/htm/transmission/3a.htm

 

thanks for that. do you know whether the transfer cases are identical except for the splines? I am trying to remember whether one has chain driven and the other gear driven. I think I would prefer to stay with gear driven, although my offroad situations are not particularly extreme so it may not really matter.

My thoughts were to swap out the tranny and transfer cases together since both sets are already bolted together. I dont plan to go inside for overhauling, i would just wait on that until i actually need to overhaul...

cheers for your input fellas.

 

(joke)
Its worthless - send me the bell housing
(joke)

AFAIK - the 22RTE manual trans used a GEAR driven transfer.... which is of course where the entire 23 spline upgrade thing comes from

AFAIK - its the V6 R15x series that used the chain drive

Hope he's still your friend after he finds out the screaming deal you got...

 

thanks again ewong. i will give you dibs if i don't proceed with the swap, but i dont see why i wouldnt at this point. i am hoping that the slightly lower gearing will compensate for the slightly larger tire that i will be using for the next several years - ie, hoping that i wont *need* to go into the diff gears for several years. the stock ratio works well for me now, and i really dont want to get too far away from it if i can help it - its a p/t dd.

 

I have a R151 trans with the case. I do not know the condition of the trans but the transfer case is good. I picked it up in my local u-pull-it yards. My intentions where to see if anyone locally can rebuilt the R151 but I do not think I'am going that route. I may use the R150 trans and use the turbo tcase. I'am going to buy the adapter to put a 302 Ford to a R series trans but I do not know which is stronger, the R151 or the R150.

James

 

both R151 and R150 use 23 spline throughout, and I believe the same bearings and everything.

In other words - same strength.

 

That is what I thought I read but I couldn't remember. Actually I was in mid-search when you posted the answer. So the question to go along with the original post, what would the trans and bell housing go for if I sold it? I do not know the condition of the trans.

James

 

i'm getting the feeling that marlins core charge might be pretty close to market average. i bet average is about ten or 15 percent lower, or about 550.